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Atoms Part 2

Total questions: 12

Worksheet time: 12mins

Name
Class
Date
1.

The periodic table is arranged by

a)

number of protons in each atom

b)

size of the nuclues

c)

states of matterq

d)

number of neutrons in each atom

2.

Atomic number refers to the number of

a)

electrons

b)

neutrons

c)

protons

d)

protons and electrons

3.

Atomic mass refers to the number of

a)

electrons

b)

electrons and protons

c)

protons and neutrons

d)

neutrons and electrons

4.

What part of the atom determines the properties of an element

a)

number of electrons

b)

number of protons

c)

number of neutrons

5.

What are the smallest units of matter that still have the properties of an individual element?

a)

Quarks

b)

Electrons

c)

Atoms

d)

Nucleus

6.

If we have 12 protons and 13 neutrons in a neutral atom, how many electrons would you expect to find?

a)

12

b)

13

c)

25

d)

impossible to determine

7.

Which element is most common in the human body?

a)

Argon

b)

Helium

c)

Iron

d)

Hydrogen

8.

According to the picture, how many protons would you expect to find in most atoms of mercury

a)

80

b)

200

c)

201

d)

2801

9.

What is the atomic mass of mercury?

a)

80

b)

200.59

c)

280.59

d)

120.59

10.

What is the atomic number of mercury?

a)

80

b)

200.59

c)

280.59

d)

120.59

11.

How many neutrons would we expect most atoms of mercury to have?

a)

80

b)

201

c)

121

d)

281

12.

Which statement about atoms is true?

a)

The nucleus is highly unstable

b)

The number of neutrons determines the type of atom

c)

The electrons are found on the outside as shells

d)

the number of neutrons always equals the number of protons