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Ions and isotopes

Total questions: 132

Worksheet time: 1hrs 26mins

Name
Class
Date
1.

Cations have what charge?

a)

+

b)

-

2.

Anions are what charge?

a)

+

b)

-

3.

Noble gases are...

a)

Happy and stable because they have full valence electrons

b)

Happy BUT UNSTABLE because they are gases

c)

Not happy because they don't want to be noble

d)

Not happy but stable because they are group number 18

4.

Valence electrons means..

a)

Electrons inside the atoms

b)

Electrons on the outer most energy level

c)

Electrons with no charge

d)

Electrons that are stable

5.

Element Chlorine [Cl] at group #17 have how many valence electrons?

a)

6

b)

7

c)

17

d)

5

6.

Element Chlorine [Cl] will make a(n)...

a)

Cation

b)

Anion

7.

Anions will

a)

lose electrons

b)

gain electrons

8.

Cations will

a)

Lose electrons

b)

Gain electrons

9.

Isotopes behave chemically the same as other same elements

a)

True

b)

False

10.

Isotopes behave physically same with other same elements

a)

True

b)

False

11.

This isotope have how many neutrons?

a)

26

b)

12

c)

14

d)

16

12.

Which of the Chlorine [Cl] is heavier?

a)

Cl-37

b)

Cl-35

13.

For Cl 37, what does the 37 represent?

a)

Number of Protons

b)

Number of Neutrons

c)

Number of Electrons

d)

Atomic Mass Number

14.

Which element is located at period 4 group 6? [click the picture to zoom in]

a)

Cr

b)

Sg

c)

Hf

d)

Ta

15.

What is the planetary model also known as?

a)

Thomson model

b)

Plum pudding model

c)

Bohr model

d)

Nuclear model

16.

Which scientist proposed the Nuclear Model by doing the Gold Foil Experiment?

a)

Rutherford

b)

J.J. Thomson

c)

Bohr

d)

Dalton

17.

Protons are...

a)

Positive charge

b)

Negative charge

c)

Neutral/No charge

18.

Electrons are...

a)

Positive charge

b)

Negative charge

c)

Neutral/No charge

19.

Neutrons are...

a)

Positive charge

b)

Negative charge

c)

Neutral/No charge

20.

Which particles are NOT inside the nucleus of atoms?

a)

Protons

b)

Electrons

c)

Neutrons

21.

What charge does an atom have when it GAINS electrons?

a)

Positive

b)

Negative

c)

Neutral

22.

What is the mass number of this atom?

a)

1

b)

3

c)

4

d)

7

23.

What type of atom is this?

a)

Neutral atom

b)

Cation

c)

Anion

d)

Isotope

24.

What type of atom is this?

a)

Neutral atom

b)

Cation

c)

Anion

d)

Isotope

25.

What is the atomic number of this element?

a)

12

b)

24

c)

23

26.

How many ELECTRONS does copper have if it has the following charge: Cu2+ ?

a)

64

b)

35

c)

27

d)

29

27.

How many ELECTRONS will iron have if it has the following charge: Fe3+ ?

(a)  

28.

How many PROTONS does nitrogen have if it has the following charge: N3- ?

a)

14

b)

7

c)

10

d)

4

29.

Cations have what charge?

a)

+

b)

-

30.

Anions are what charge?

a)

+

b)

-

31.

If potassium (K) looses an electron what is its chemical symbol?

a)

K −K^{\ -}  

b)

K+K^+  

c)

K2−K^{2-}  

d)

K2+K^{2+}  

32.
What is the number of neutrons?
a)
34
b)
79
c)
45
d)
35
33.

Which of the following are isotopes?

a) 14 7X b) 14 6X c) 15 7X d) 15 8X

a)

a) and b)

b)

a) and c)

c)

c) and d)

d)

a) and d)

34.

Which of the following are isotopes of the same element

  I. 7735X  II. 7733X  III. 8137X  IV. 8135 X

a)
I and II
b)
III and IV
c)
I and IV
d)
I and III
35.
How is carbon-12 different from carbon-14?
a)
They have a different number of protons
b)
they have a different number of electrons
c)
they have a different number of neutrons
36.

How would you write the isotope name from this nuclide symbol?

a)

Sodium-23

b)

Sodium-11

c)

Sodium-12

d)

Sodium-22

37.

_______ are atoms with the same number of protons but varying numbers of neutrons.

a)

ions

b)

elements

c)

allotropes

d)

isotopes

38.

Which of these pairs of atoms are isotopes?

a)

pair A

b)

pair B

c)

pair C

39.

The average atomic mass of element A is 63.6 amu. The only naturally occurring isotopes of element A are A-63 and A-65.

Predict the percentage abundance of these elements.

a)

100% A-63 and 0% A-65

b)

31% A-63 and 69% A-65

c)

69% A-63 and 31% A-65

d)

50% A-63 and 50% A-65

40.

What charge does an atom have when it GAINS electrons?

a)

Positive

b)

Negative

c)

Neutral

41.

What is a representation of an ion?

a)

Li

b)

Na-22

c)

O-2

42.

What is the mass number of bromine?

a)

35

b)

45

c)

80

d)

79.904

43.

How many neutrons does this bromine atom have?

a)

35

b)

45

c)

80

44.

What type of atom is this?

a)

Neutral atom

b)

Cation

c)

Anion

d)

Isotope

45.

What two particles determine the mass number?

a)

Protons and electrons

b)

Electrons and neutrons

c)

Protons and neutrons

46.

What type of atom is this?

a)

Normal Atom

b)

Cation

c)

Anion

d)

Isotope

47.

What is the mass number of this Neon atom?

a)

10

b)

11

c)

21

d)

20

48.

What does it change in an ion?

a)

The number of electrons

b)

The number of protons

c)

The number of neutrons

49.

How many neutrons does this Neon atom have?

a)

21

b)

11

c)

10

d)

12

50.

What does it happen to this atom?

a)

It LOSES electrons

b)

It GAINS electrons

c)

It GAINS protons

d)

It LOSES protons

51.

What is the atomic number of this element?

a)

12

b)

24

c)

23

52.

What type of atom is element C?

a)

Normal atom

b)

Ion

c)

Isotope

53.

What is the mass number of this element?

a)

12

b)

24

c)

23

d)

11

54.
Two atoms of different elements will definitely have different numbers_____
a)
Nuclei
b)
Protons
c)
Neutrons
d)
Electrons
55.
An ion forms when an atom gains or loses
a)
Protons
b)
Neutrons
c)
Electrons
56.
A neutral atom would become an ion that has a charge of 2+ by 
a)
Losing two protons
b)
Losing two neutrons
c)
Losing two electrons
57.
Isotopes are atoms that have different
a)
Mass numbers
b)
Element names
c)
Atomic Numbers
58.
A positively charged ion is formed when
a)
A neutron is lost
b)
An electron is lost
c)
A neutron is gained
d)
An electron is gained
59.
Two atoms that have different numbers of protons are 
a)
Different ions
b)
Different isotopes
c)
Different elements
60.
An ion that has a negative charge is formed when an atom 
a)
Loses neutrons
b)
Loses electrons
c)
Gains neutrons
d)
Gains electrons
61.
What information would allow you to determine whether two atoms are of the same or different elements
a)
The charge on each atom
b)
The number of neutrons each has
c)
The number of protons in their nuclei
d)
The location of the electrons in their electron clouds
62.
Is the element shown in this image an ion, isotope or normal atom?
a)
atom
b)
isotope
c)
cation (+ ion)
d)
anion (- ion)
63.
The atomic mass is equal to _.
a)
the number of protons only
b)
the number of neutrons only
c)
the total number of protons and neutrons
d)
the number of protons, neutrons, and electrons.
64.

What is the mass number of this atom?

a)

1

b)

3

c)

4

d)

7

65.

What is the atomic number of Barium, Ba? (enlarge the periodic table)

a)

20

b)

38

c)

56

d)

88

66.

How many protons are in a sodium atom, Na? (tap to enlarge the periodic table)

a)

Sodium has 1 proton.

b)

Sodium has 3 protons.

c)

Sodium has 11 protons

67.

Atoms of the same element which have a different number of neutrons are called _________________.

a)

ions

b)

isotopes

c)

quarks

d)

molecules

68.

Which subatomic particle has a negative charge in the atom?

a)

proton

b)

neutron

c)

electron

d)

quark

69.

How many neutrons does C-14 contain? (tap to enlarge the image)

a)

6

b)

7

c)

14

d)

8

70.

ALL atoms of the same element have:

a)

same number of proton

b)

same number of nucleon

c)

different number of neutron

d)

different number of electron

71.
If X is the symbol for an element, which of the following two symbols represent    isotopes of the same element?     I. 7735X  II. 7733X  III. 8137X  IV. 8135 X
a)
I and II
b)
III and IV
c)
I and IV
d)
I and III
72.
How many neutrons does the isotope below have?     89 36Kr
a)
53
b)
36
c)
89
d)
125
73.
Four isotopes of lead include lead-204, lead-206, lead-207, and lead-208.  The average atomic mass of lead is 207.2.  Which isotope of lead is likely to be the most abundant.
a)
204
b)
206
c)
207
d)
208
74.
Which subatomic particles contribute the most to the mass of an atom?
a)
Protons, Neutrons, Electrons
b)
Protons only
c)
Protons and Electrons
d)
Protons and Neutrons
75.
The number of protons is equal to 
a)
the atomic number
b)
the number of neutrons
c)
the energy levels
d)
the periodic table groups
76.

If an atom has 12 neutrons and 11 protons, what is its atomic mass?

(a)  

77.
How many protons does this isotope of titanium have?
a)
48
b)
22
c)
26
d)
70
78.
Calculate the average atomic mass of silver.
a)
106.38649amu
b)
111.91896amu
c)
107.8677amu
d)
121
79.
An element has two naturally occurring isotopes. One is 10.013 amu and is 19.9% abundant. The other is 11.01 amu and is 80.1% abundant. What is the average atomic mass? What element is it?
a)
9.012, Beryllium
b)
12.011, Carbon
c)
6.941, Lithium
d)
10.812, Boron
80.
Oxygen has 8 protons. What is oxygen's atomic number?
a)
16
b)
8
c)
15.999
d)
0
81.

What is the charge on a lithium atom that loses 1 electron?

a)

+1

b)

0

c)

-1

d)

-2

82.

What is the atomic number of Fe? (click to see image)

a)

26

b)

55.845

c)

56

d)

30

83.
a)
2
b)
8
c)
3
d)
13
84.
a)
12
b)
7
c)
8
d)
14
85.

Valence electrons are in the...

a)

Innermost energy level of the atom.

b)

Middle energy level of the atom.

c)

Outermost energy level of the atom.

d)

energy levels of the atom.

86.

How many valence electrons does Helium have?

a)

1

b)

2

c)

3

d)

4

e)

5

87.

What type of atom is this?

a)

Neutral atom

b)

Cation

c)

Anion

d)

Isotope

88.

What is the atomic number of this element?

a)

12

b)

24

c)

23

89.

How many ELECTRONS does copper have if it has the following charge: Cu2+ ?

a)

64

b)

35

c)

27

d)

29

90.

How many ELECTRONS will iron have if it has the following charge: Fe3+ ?

(a)  

91.

How many PROTONS does nitrogen have if it has the following charge: N3- ?

a)

14

b)

7

c)

10

d)

4

92.

Cations have what charge?

a)

+

b)

-

93.

Anions are what charge?

a)

+

b)

-

94.

If potassium (K) looses an electron what is its chemical symbol?

a)

K −K^{\ -}  

b)

K+K^+  

c)

K2−K^{2-}  

d)

K2+K^{2+}  

95.
What is the number of neutrons?
a)
34
b)
79
c)
45
d)
35
96.

Which of the following are isotopes?

a) 14 7X b) 14 6X c) 15 7X d) 15 8X

a)

a) and b)

b)

a) and c)

c)

c) and d)

d)

a) and d)

97.

Which of the following are isotopes of the same element

  I. 7735X  II. 7733X  III. 8137X  IV. 8135 X

a)
I and II
b)
III and IV
c)
I and IV
d)
I and III
98.
How is carbon-12 different from carbon-14?
a)
They have a different number of protons
b)
they have a different number of electrons
c)
they have a different number of neutrons
99.

How would you write the isotope name from this nuclide symbol?

a)

Sodium-23

b)

Sodium-11

c)

Sodium-12

d)

Sodium-22

100.

_______ are atoms with the same number of protons but varying numbers of neutrons.

a)

ions

b)

elements

c)

allotropes

d)

isotopes

101.

Which of these pairs of atoms are isotopes?

a)

pair A

b)

pair B

c)

pair C

102.

The average atomic mass of element A is 63.6 amu. The only naturally occurring isotopes of element A are A-63 and A-65.

Predict the percentage abundance of these elements.

a)

100% A-63 and 0% A-65

b)

31% A-63 and 69% A-65

c)

69% A-63 and 31% A-65

d)

50% A-63 and 50% A-65

103.

The vertical (up and down) columns in the Periodic Table are called

a)

groups

b)

towers

c)

periods

d)

atomic numbers

104.

The vertical (up and down) columns in the Periodic Table are called

a)

groups

b)

towers

c)

periods

d)

atomic numbers

105.
The Modern Periodic Table of Elements is arranged by
a)
atomic mass
b)
atomic number
c)
valence electrons
d)
number of isotopes
106.
Which group of the periodic table is composed of inert (not reactive)  gases?
a)
alkali metals
b)
alkaline earth metals
c)
halogens
d)
noble gases
107.
Which is an alkali metal?
a)
Magnesium
b)
Iron
c)
Sodium
d)
Europium
108.
Which is a halogen?
a)
Helium
b)
Chlorine
c)
Oxygen
d)
Neptune
109.
Elements in a ..................have similar chemical properties.  
a)
period
b)
group
c)
row
110.

The letter, C, is a ... of carbon.

a)

Name

b)

Nickname

c)

Chemical Symbol

d)

Pseudonym

111.

Which of the following are physical properties of metal?

a)

Luster

b)

Conductivity

c)

Malleability

d)

Ductility

112.

True or False: The reactivity of metals tends to decrease as you move from left to right across the periodic table.

a)

True

b)

False

113.

Name this group: These metals are the most reactive.

a)
b)
c)
d)
114.

Name this group: These metals are the second most reactive.

a)
b)
c)
d)
115.

Name this group: These metals are the second most reactive.

a)
b)
c)
d)
116.

Name this group: These metals contain familiar metals such as gold, iron, and copper.

a)
b)
c)
d)
117.

Name this group: These metals, located near the nonmetals, are never found uncombined in nature.

a)
b)
c)
d)
118.

Find these groups: Locate Lanthanides and Actinides.

a)
b)
c)
d)
119.

Which of the following could be properties of nonmetals?

a)

Poor electrical conductivity

b)

Poor thermal conductivity

c)

Dullness

d)

Brittleness

120.

I am a metal


I am in group 2


I am in period 6


I am…

a)

Mo

b)

Re

c)

S

d)

Ba

121.

I am a nonmetal


I am in period 2


I am in group 16/6A

a)

Ba

b)

Si

c)

Ba

d)

O

122.

Find an element with similar chemical properties to Barium (Ba).

a)

Ca an Ra, because they are in the same group and have similar chemical properties.

b)

Cs and La, b/c they are in the same period number.

c)

Ca and Y, b/c they are 90 degree angle and have similiar properties.

123.

What is the name of group number 1?

a)

halogens

b)

noble gases

c)

alkali metals

d)

alkaline earth metals

124.

A row on the Periodic Table of Elements

a)

family

b)

period

c)

row

d)

isotope

125.

Which element is found in group 2, period 6?

a)

Oxygen (O)

b)

Barium (Ba)

c)

Selenium (Se)

d)

Carbon (C)

126.

Which halogen is found in period 4?

a)

Krypton (Kr)

b)

Xenon (Xe)

c)

Bromine (Br)

d)

Iodine (I)

127.

a unique number for each element that equals the number of protons in an atom of that element

a)

element name

b)

element symbol

c)

atomic number

d)

atomic mass

128.

Name this group: These elements, also known as inert gases, tend to be nonreactive.

a)

Halogen family

b)

Noble gases

c)

Carbon family

d)

Nitrogen family

129.
Which of the following atomic symbols for bromine is written correctly?
a)
bR
b)
BR
c)
Br
d)
br
130.
Elements which are shiny, conduct electricity and heat are called
a)
metal
b)
nonmetal
c)
metalloid
d)
nonexistent
131.
Which is a halogen?
a)
Helium
b)
Chlorine
c)
Oxygen
d)
Neptune
132.
Which is an alkali metal?
a)
Magnesium
b)
Iron
c)
Sodium
d)
Europium

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