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Unit 3 Atomic Structure Review

Total questions: 53

Worksheet time: 37mins

Name
Class
Date
1.
Who first proposed that everything in the world was made up of tiny particles?
a)
Aristotle
b)
Democritus
c)
Plato
d)
Socrates
2.
Democritus called the tiniest particles of matter "atomos", which is Greek for _____
a)
empty space
b)
invisible
c)
very small
d)
indivisible
3.

Isotopes have the same number of ____, but different number of ____.

a)

neutrons; protons

b)

protons; electrons

c)

protons; neutrons

d)

electrons; protons

4.

What is the atom's nucleus made of?

a)

protons

b)

electrons

c)

neutrons

d)

ions

5.

Atoms of the same element that have different numbers of neutrons are called_________

a)

molecules

b)

ions

c)

protons

d)

isotopes

6.

Which particles determine the atomic number of an element?

a)

protons only

b)

protons and neutrons

c)

electrons

d)

protons and electrons

7.

Beryllium is in GROUP 2 because it

a)

is a metal

b)

is a gas

c)

has 2 valence electrons

d)

has 2 energy levels

8.

Atoms of elements in the same GROUP of the periodic table share the same

a)

number of energy levels

b)

number of valence electrons

c)

atomic numbers

d)

atomic masses

9.

An element with 4 protons, 5 neutrons, and 4 electrons has a mass number of _______

a)

7

b)

9

c)

13

d)

14

10.

The total number of neutrons of any atom is equal to the

a)

mass of the atom

b)

mass number minus the atomic number

c)

atomic number of the atom

11.

An atom is electrically neutral because

a)

neutrons balance the protons and electrons

b)

nuclear forces stabilize the charges

c)

the number of protons and electrons is the same

d)

the number of protons and neutrons are equal

12.

Sodium, Magnesium, Aluminum, and Chlorine are all members of the same_____

a)

family

b)

group

c)

period

d)

valence level

13.

Select which of the following statements about the arrangement of the periodic table Are True

a)

Noble gases are the group farthest to the right

b)

Metals are found on the left side of the periodic table

c)

Transition metals are in the center of the periodic table

d)

Rare earth elements are in the first column on the periodic table

14.

Which of the following developed the first periodic table using atomic mass?

a)

Dimitri Mendeleev

b)

Niels Bohr

c)

JJ Thompson

d)

Democritus

15.

Which of the following said that electrons travel in fixed orbits around the nucleus of teh atom?

a)

Dimitri Mendeleev

b)

Niels Bohr

c)

JJ Thompson

d)

Democritus

16.

Which of the following named the atom based on a word that means indivisible?

a)

Dimitri Mendeleev

b)

Niels Bohr

c)

JJ Thompson

d)

Democritus

17.

Which of the following developed the Plum Pudding Model- with an atom is a positive sphere with negative particles spread evenly throughout?

a)

Dimitri Mendeleev

b)

Niels Bohr

c)

JJ Thompson

d)

Democritus

18.

This element is in the Alkaline Earth Metals group and has 4 energy levels

a)

Beryllium

b)

Potassium

c)

Calcium

19.

The atomic number of Potassium is 19 and the atomic mass is 39.10. Its nuclei must contain

a)

19 protons and 39 neutrons

b)

19 protons and 19 electrons

c)

39 protons and neutrons

d)

19 protons and 20 neutrons

20.

The majority of the volume of an atom is located in the ________

a)

nucleus

b)

electron cloud

c)

valence electrons

21.

The majority of the mass of an atom is located in the ________

a)

nucleus

b)

electron cloud

c)

valence electrons

22.

Neutral atoms have

a)

have more protons than electrons

b)

same number of protons and neutrons

c)

have less protons than electrons

d)

same number of protons and electrons

23.

Positive ions have

a)

have more protons than electrons

b)

same number of protons and neutrons

c)

have less protons than electrons

d)

same number of protons and electrons

24.

Negative ions have

a)

have more protons than electrons

b)

same number of protons and neutrons

c)

have less protons than electrons

d)

same number of protons and electrons

25.

The atomic number of Oxygen is

a)

7

b)

8

c)

16

d)

18

26.

A Oxygen anion has a charge of -2 because is LOST two electrons

a)

True

b)

False

27.

A Beryllium cation has a charge of +2 because is LOST two electrons

a)

True

b)

False

28.

For the element Sodium (Na+1) identify whether it is a Metal or Non Metal. Also identify if it is a cation or anion. You will select 2 answers

a)

metal

b)

non metal

c)

cation

d)

anion

29.

For the element Chlorine (Cl-1) identify whether it is a Metal or Non Metal. Also identify if it is a cation or anion. You will select 2 answers

a)

metal

b)

non metal

c)

cation

d)

anion

30.

An anion is an ion that has

a)

more than 1 charge

b)

a positive charge

c)

a negative charge

31.

A cation is an ion with a _______ charge because it has _______electrons

a)

positive, gained

b)

positive, lost

c)

negative, gained

d)

negative, lost

32.

Which of the following explains the location of nitrogen the periodic table?

a)

It has one more proton than carbon, so it is located after carbon, and it is a metal, so it is located on the right of the periodic table.

b)

It has one less proton than carbon, so it is located after carbon, and it is a non-metal, so it is located on the right side of the periodic table.

c)

It has one more proton than carbon, so it is located after carbon, and it is a non-metal, so it is located on the right side of the periodic table.

d)

It has one less proton than carbon, so it is located after carbon, and it is a metal, so it is located on the right side of the periodic table.

33.
The horizontal row on the periodic table is called a
a)
group
b)
family
c)
period
d)
atomic number
34.
A vertical column is called...
a)
group
b)
tower
c)
period
d)
crew
35.

Label (c) of the Periodic Table.

a)

Period

b)

Group

c)

Metals

d)

Non-metals

36.

Label (d) of the Periodic Table.

a)

Group

b)

Period

c)

Metals

d)

Non-metals

37.

These models both represent the element of _______

a)

Chlorine

b)

Fluorine

c)

Oxygen

38.

Which model shows an ion? Is it a cation or an anion?

a)

1, anion

b)

1, cation

c)

2, anion

d)

2, cation

39.

Use your periodic table to show the number of protons Sulfur has

a)

14

b)

16

c)

32

40.

Elements on the periodic table are organized into families with similar properties

a)

True

b)

False

41.

Which family has a full outer shell?

a)

Alkaline Earth Metals

b)

Alkali Metals

c)

Noble Gases

d)

Halogens

42.

What charge will atoms in group 1 have?

a)

+2

b)

+1

c)

-1

d)

-2

43.

An anion is always...

a)

positive

b)

negative

44.

A cation has...

a)

more protons than electrons

b)

more electrons than protons

45.
How many protons does this isotope of titanium have?
a)
48
b)
22
c)
26
d)
70
46.
How many neutrons does the isotope of lithium have?
a)
8
b)
3
c)
4
d)
5
47.
An element is defined by its number of 
a)
protons
b)
electrons
c)
neutrons
d)
protons + electrons
48.
How many neutrons does the isotope below have?     89 36Kr
a)
53
b)
36
c)
89
d)
125
49.

What is the mass number of the element shown?

a)

15

b)

7

c)

8

d)

0

50.

An atom has 12 protons and 13 neutrons in its nucleus. Which is the correct symbol?

a)
b)
c)
d)
51.
Which of these is the proton.
a)
A
b)
B
c)
C
d)
None
52.
Which of these is the electron?
a)
A
b)
B
c)
C
d)
D
53.
B and C are found in the ______ of an atom.
a)
Energy levels
b)
Space
c)
Nucleus
d)
Outside

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