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Worksheets

Chemistry

Total questions: 18

Worksheet time: 9mins

Name
Class
Date
1.

what is an atom

a)

smallest part of the universe

b)

smallest part of a substance

c)

smallest part of anything

d)

smallest part of water

2.

protons

a)

negative charge, nucleus

b)

positive charge, shells

c)

positive charge , nucleus

d)

neutral charge, nucleus

3.

neutrons

a)

no charge, shells

b)

positive charge, nucleus

c)

neutral, no charge, nucleus

d)

negative charge, shells

4.

electrons

a)

no charge, nucleus

b)

positive charge, nucleus

c)

negative charge, shells

d)

negative charge, nucleus

5.

atomic number

a)

number of protons/stands for an element

b)

number of neutrons

c)

number of electrons

d)

number of protons and neutrons

6.

mass number

a)

number of protons

b)

number of electrons

c)

number of protons and electrons

d)

number of protons and neutrons

7.

atomic symbol

a)

capital letter

b)

lowercase letter

c)

2 capital letters

d)

2 lowercase leters

8.

lst shell holds

a)

2

b)

8

c)

18

d)

32

9.

2nd shell holds

a)

2

b)

8

c)

18

d)

32

10.

3rd shell holds

a)

2

b)

8

c)

18

d)

32

11.

4th shell holds

a)

2

b)

8

c)

18

d)

32

12.

a charged atom

a)

neutral

b)

isotope

c)

ion

d)

nucleus

13.

a charged atom

a)

neutral

b)

isotope

c)

ion

d)

nucleus

14.
What are the 3 particles that make-up the atom?
a)
protons, neutrons, and isotopes
b)
neutrons, isotopes, and electrons
c)
positives, negatives, and electrons
d)
protons, neutrons, and electrons
15.

What is the number of protons that the element in this image contain?

a)

14

b)

7

c)

15

d)

18

16.
Most of the mass in an atom is concentrated in the...
a)
electrons
b)
nucleus
c)
protons
d)
empty space
17.
"C" is the element symbol for which element?
a)
calcium
b)
carbon
c)
chlorine
d)
cadmium
18.

True or False? Neutrons have a negative charge

a)

True

b)

False