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Electron configuration and Valence Electron quiz

Total questions: 96

Worksheet time: 1hrs 19mins

Name
Class
Date
1.
The electron configuration of an atom is 1s22s22p6.  The number of electrons in the atom is 
a)
3
b)
6
c)
8
d)
10
2.
An orbital can at most hold how many electrons?
a)
1 electron
b)
2 electrons
c)
3 electrons
d)
4 electrons
3.

Chemists can identify the composition of some unknown salts by conducting a flame test. When potassium salts are heated in a flame, a purple color is observed.


This is due to the movement of electrons between energy levels. What is the electron configuration of a potassium atom at ground state?

a)

1s2; 2s2; 2p6; 3s2; 3p6; 4d1

b)

1s2; 2s2; 2p6; 3s2;3p6; 3d1

c)

1s2; 2s2; 2d6; 3s2; 3d6; 4s1

d)

1s2; 2s2; 2p6; 3s2; 3p6; 4s1

4.
The electron configuration of an atom is 1s22s22p6.  The number of electrons in the atom is 
a)
3
b)
6
c)
8
d)
10
5.
What atom matches this electron configuration?
1s22s22p63s23p64s23d10
a)
Zinc
b)
Copper
c)
Nickel
d)
Germanium
6.
What electron configuration matches an oxygen atom?
a)
1s22s22p63s2, 3p64s23d104p5
b)
1s22s22p4
c)
1s22s22p6
d)
1s22s22p63s23p64s23d1
7.

Which element has 2,8,8 electrons per shell?

a)

Lead

b)

Fluorine

c)

Neon

d)

Argon

8.
How many valence electrons does Si contain? (click to see image)
a)
14
b)
28
c)
2
d)
4
9.

The number of electrons in the 3d orbital of the atom of atomic number 27 is

a)

5

b)

6

c)

7

d)

10

10.

Which is the terminal electron configuration of Br (Bromine)?

a)

4p5

b)

4p6

c)

3d10

d)

3d5

11.

What is the electronic configuration for this atom?

a)

1s22s22p6

b)

1s22s22p5

c)

1s22s22p3

d)

2s22p3

12.

name the 4 different Orbitals

a)

S,P,D,F

b)

S,P,F,E

c)

A,B,C,D

d)

S,P,F,C

13.

Shorthand configuration of K

a)

[Ar]4s2

b)

[Ar]4s1

c)

[Ar]4s23d9

14.
Valence electrons are the...
a)
Innermost electrons
b)
Middle electrons
c)
Outermost electrons
d)
Any electrons
15.

How many valence electrons does carbon have?

a)

4

b)

5

c)

6

d)

7

16.

USE THE PERIODIC TABLE

How many valence electrons does sodium have?

a)

1

b)

2

c)

3

d)

4

17.

USE THE PERIODIC TABLE

How many valence electrons does Phosphorus have?

a)

31

b)

5

c)

15

d)

4

18.
Elements in the same column of the periodic table always have the same # of _______ as one another.
a)
Protons
b)
Neutrons
c)
Electrons
d)
Valence Electrons
19.
Which group has the greatest number of valence electrons?
a)
1
b)
14
c)
18
d)
16
20.
Valence electrons are: 
a)
Electrons farthest away from the nucleus
b)
Electrons closest to the nucleus
c)
Electrons that just come and go - they don't stay with the atom
d)
Electrons in the second shell
21.

How many valence electrons should Magnesium have in its Lewis dot model?

a)

1

b)

2

c)

3

d)

4

22.
How many valence electrons are found in atoms of group 1?
a)
7
b)
6
c)
4
d)
1
23.
How many valence electrons are found in atoms of group 14?
a)
4
b)
3
c)
14
d)
16
24.

Which elements have the most similar chemical properties?

a)

boron and carbon

b)

oxygen and sulfur

c)

aluminum and bromine

d)

argon and silicon

25.

In a stable atom the amount of electrons is equal to

a)
neutrons
b)
protons
c)
atomic mass
d)
neutrons + protons
26.

How many valence electrons does Neon Have?

a)

4 Valence electron

b)

5 Valence electron

c)

6 Valence electron

d)

7 Valence electron

e)

8 Valence electron

27.

What is a positive ion called?

a)

anion

b)

cation

c)

isotope

d)

covalent

28.

What is a negative ion called?

a)

anion

b)

cation

c)

covalent

d)

isotope

29.

Which types of elements from cations?

a)

metals

b)

nonmetals

c)

metalloids

d)

noble gases

30.

Which types of elements from anions?

a)

metals

b)

nonmetals

c)

metalloids

d)

noble gases

31.

If an atom loses electrons, the charge will be positive.

a)

true

b)

false

32.
What is an ion?
a)
A Charged Atom
b)
A Large Atom
c)
A Small Atom
d)
A Cute Atom
33.
Why are ions charged particles?
a)
The number of electrons does not equal the number of protons.
b)
The number of protons does not equal the number of neutrons.
c)
The number of neutrons does not equal the number of electrons.
d)
The electric charges of the electrons and protons cancel each other out.
34.
Valence electrons are
a)
outer shell electrons
b)
electrons involved in reactions
c)
s and p orbital electrons
d)
all of these
35.
What is the maximum number of electrons that an orbital can have?
a)
1 electron
b)
2 electrons
c)
3 electrons
d)
4 electrons
36.
How many d orbitals are there in a given sublevel?
a)
1
b)
3
c)
5
d)
7
37.
What is this element? 
1s22s22p63s23p6
4s23d104p6
a)
Argon
b)
Krypton
c)
Selenium
d)
Bromide
38.
How many electrons can the first energy level hold?
a)
1
b)
2
c)
8
d)
0
39.
What noble gas should be used to write the shorthand configuration for Te?
a)
Ar
b)
Kr
c)
Xe
d)
Sb
40.

Which of the following is not a way that ions can form?

a)

gaining electrons

b)

gaining protons

c)

losing electrons

d)

All of the above are ways that ions can form.

41.
An orbital can at most hold how many electrons?
a)
1 electron
b)
2 electrons
c)
3 electrons
d)
4 electrons
42.
What atom matches this electron configuration?
1s22s22p63s23p64s23d10
a)
Zinc
b)
Copper
c)
Nickel
d)
Germanium
43.
What electron configuration matches an oxygen atom?
a)
1s22s22p63s2, 3p64s23d104p5
b)
1s22s22p4
c)
1s22s22p6
d)
1s22s22p63s23p64s23d1
44.

The number of electrons in the 3d orbital of the atom of atomic number 27 is

a)

5

b)

6

c)

7

d)

10

45.

How many electrons can the s orbital hold?

a)

2

b)

1

c)

4

d)

6

46.

How many electrons can a d orbital hold?

a)

10

b)

7

c)

14

d)

6

47.
FIND THE ELECTRONIC CONFIGURATION OF Cl (At no = 17)
a)
2,8,7
b)
2,8,8
c)
2,8,6
d)
2,8
48.
Which is the first element in periodic table
a)
Hydrogen
b)
Chloriine
c)
Helium
d)
Boron
49.
Ar (18)
a)
2,8,7
b)
2,8,8
c)
2,8,6
d)
2,8,5
50.

If an electron is removed, an ion becomes

a)

An atom

b)

Positive

c)

Negative

d)

Neutral

51.

If an ion gains an electron, it becomes

a)

Positive

b)

Stable

c)

Atomic

d)

Negative

52.

Cations have what type of charge?

a)

Positive

b)

Negative

53.

What is the name for an ion when it gains an electron.

a)

Anion

b)

Cation

54.

Anions have which type of charge?

a)

Positive

b)

Negative

55.

Two objects that are similarly charged will...

a)

attract.

b)

repel.

c)

not experience an electric force.

d)

implode.

56.

A negatively charged object and a positively charged object will...

a)

attract.

b)

repel.

c)

not experience an electric force.

d)

implode.

57.

What is an ion?

a)

An atom with extra neutrons

b)

A charged particle

c)

An atom that has equal protons and electrons

d)

A particle with a different atomic mass

58.

How do metal atoms form ions?

a)

They lose electrons to form negative ions

b)

They gain electrons to form positive ions

c)

The lose electrons to form positive ions

59.

Calcium ions form an ion with __________ charge.

a)

-1

b)

+1

c)

+2

d)

-2

60.

What is a charged atom known as?

a)

Electron

b)

Proton

c)

Ion

d)

Neutron

61.
How are elements on the periodic table arranged by?
a)
in alphabetic order
b)
simular physical & chemical properties
c)
their symbols
d)
Just simular physical properties
62.
Periods on the periodic table are __________.
a)
Horizontal Rows
b)
Vertical Columns
63.
Groups on the periodic table are __________.
a)
Horizontal Rows
b)
Vertical Columns
64.

The Atomic number is known as the _______

a)

Number of electrons in an atom

b)

Number of Protons in an atom

c)

Number of neutrons in an atom

d)

Number of Protons and electrons in an atom

65.

What charge do protons have?

a)

Positive

b)

Negative

c)

Neutral

66.

What is Atomic Mass Number ?

a)

Number of Protons

b)

Number of Neutrons

c)

Number of Protons and Neutrons

d)

Number of Protons and Electrons

67.

The number of electrons in an atom is equal to the...

a)

Atomic number

b)

Protons

c)

Atomic Mass

d)

Neutrons

68.

The formula used to calculate the number of neutrons is:

a)

Mass Number - Atomic Number

b)

Protons + Electrons

c)

Atomic Number - Mass Number

d)

Protons x2

69.

How many periods are on the periodic table?

a)

5

b)

6

c)

7

d)

8

70.

Elements in the same group have : (2 correct answers)

a)

Similar chemical properties

b)

Similar names

c)

Same number of outer (valence) electrons)

d)

The same number of protons

71.

Who created the periodic table?

a)

John Dalton

b)

Marie Curie

c)

Dmitri Mendeleev

72.

The periodic table is arranged in order of...

a)

increasing atomic number

b)

increasing atomic mass

c)

decreasing atomic mass

d)

decreasing atomic number

73.

The atomic number tells you the number of (a)   in the nucleus?

74.

At room temperature, most elements are classified as...

a)

non-metal

b)

metal

c)

mettalloids

d)

halogens

75.

Which of the following are located along a dividing line that looks like a staircase?

a)

metals

b)

metalloids

c)

non-metals

d)

alkali metals

76.

Which of the following is a property of non-metals?

a)

malleable (easily reshaped w/o breaking)

b)

brittle (easily broken)

c)

ductile (capable of being drown out into a wire or thread)

77.

Which of the following statements is TRUE?

a)

elements within a period have similar properties

b)

there are 7 periods on the periodic table

c)

different elements can have the same atomic number

78.

What family does Hydrogen belong?

a)

Non-metal

b)

Noble Gas

c)

Halogen

d)

Metalloid

79.

How many electrons go in the first shell (ring) ?

a)

6

b)

8

c)

4

d)

2

80.

This is a Bohr Diagram of Aluminum. How many valence electrons does Aluminum have?

a)

3

b)

4

c)

5

81.

How many valence electrons does Tin (Sn) have?

a)

8

b)

7

c)

5

d)

4

82.

How many valence electrons does Lithium (Li) have?

a)

8

b)

1

c)

5

d)

2

83.

How many valence electrons does Bromine (Br) have?

a)

5

b)

6

c)

7

d)

8

84.
What is a valence electron?
a)
an electron that is found in the outermost shell of an atom. 
b)
an electron found in the innermost shell of an atom.
c)
an electron found in the middle shell.
85.

Which of these is incorrect?

a)
b)
86.

Which of these is correct?

a)
b)
c)
87.
This could be the dot diagram of 
a)
Ne
b)
Si
c)
Al
d)
Be
88.

Which element is this?

a)

Nickel

b)

Neon

c)

Sodium

d)

Nitrogen

89.

Name this element.

a)

Argon

b)

Chlorine

c)

Aluminum

d)

Boron

90.

How many valence electrons?

a)

2

b)

3

c)

4

d)

5

91.

Which of the following elements is stable?

a)

Oxygen

b)

Neon

c)

Hydrogen

d)

Carbon

92.

Which subatomic particles are much smaller than the others and have a negative charge?

a)

protons

b)

neutrons

c)

electrons

93.
According to the octet rule most elements need _______ valence electrons.
a)
2
b)
8
c)
6
d)
18
94.
Valence electrons are: 
a)
Electrons farthest away from the nucleus
b)
Electrons closest to the nucleus
c)
Electrons that just come and go - they don't stay with the atom
d)
Electrons in the second shell
95.

Which of the following characteristics is similar for fluorine and iodine?

a)

Number of Protons

b)

Number of Neutrons

c)

Number of Orbitals

d)

Number of Valence Electrons

96.

 

What element contains 7 protons and 5 valence electrons?

a)

Boron

b)

Vanadium

c)

Nitrogen

d)

Lithium

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