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Atoms and the Periodic Table

Total questions: 43

Worksheet time: 26mins

Name
Class
Date
1.

How many protons does nitrogen contain?

a)

14.007

b)

7

c)

14

d)

3.5

2.

How many neutrons does a fluorine-19 atom contain?

a)

9

b)

19

c)

18.9984

d)

10

3.

all elements are made of what 

a)
energy 
b)
atoms 
c)
electrons 
d)
compounds 
4.

The atomic number is the number of ?

a)

neutrons

b)

protons

c)

electrons

d)

protons and neutrons

5.

How many valence electrons?

a)

2

b)

8

c)

3

d)

13

6.

Which subatomic particles contribute the most to the mass of an atom?

a)

Protons and Neutrons

b)

Protons only

c)

Electrons only

d)

Neutrons only

e)

Neutrons and electrons

7.
The central region of an atom where its neutrons and protons are is called the
a)
nucleus 
b)
electron cloud
c)
core 
d)
center 
8.

If an atom has 12 protons, how many electrons will it have?

a)

12

b)

24

c)

6

d)

half as many

9.

What is the atomic number of this atom?

a)

11

b)

12

c)

10

d)

can't be determined

10.

What is the mass number?

a)

11

b)

12

c)

23

d)

21

11.

Mark all that apply:

Different isotopes have...

a)

different masses

b)

different number of protons

c)

different number of electrons

d)

different atomic numbers

e)

different number of neutrons

12.

Why is the overall charge of an atom neutral?

a)

They have the same number of protons and neutrons.

b)

They have the same number of protons and electrons.

c)

They have the same number of electrons and neutrons.

d)

They have no protons

13.

What determines which element an atom is?

a)

number of protons

b)

number of neutrons

c)

number of electrons

d)

number of energy levels

14.

Which element is this atom?

a)

boron

b)

sodium

c)

beryllium

d)

carbon

e)

nitrogen

15.

Which atomic model is shown?

a)

Bohr's model

b)

Rutherford's model

c)

Dalton's model

d)

Thomson's model

16.

Choose all that are correct: What did Rutherford discover about the atom in his gold foil experiment?

a)

atoms are mostly empty space

b)

the nucleus is positively charged

c)

Electrons are found in the nucleus

d)

most of an atom's mass is located in the center

e)

electrons have a negative charge

17.

Click all that are correct about an electron

a)

found in the nucleus

b)

positive charge

c)

negative charge

d)

found outside the nucleus

e)

almost no mass

18.

Click all that are correct regarding protons

a)

have no charge

b)

have a positive charge

c)

found in the nucleus

d)

have a negative charge

e)

determine the type of element

19.

Click all that are correct regarding neutrons

a)

have no mass

b)

found outside the nucleus

c)

have no charge

d)

have a negative charge

e)

found inside the nucleus

20.

How many valence electrons does an atom of neon contain?

a)

10

b)

8

c)

18

d)

2

21.

How many periods on the periodic table?

a)

118

b)

7

c)

9

d)

18

22.

On which "A" group would this atom be located on the periodic table?

a)

3A

b)

8A

c)

13A

d)

2A

23.

Which electron dot diagram (also called a Lewis structure) is correct?

a)
b)
c)
d)
24.

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

a)

groups

b)

rows

c)

periods

d)

atomic numbers

25.

Lithium (Li) is found in period

a)

3

b)

2

c)

4

d)

1

26.

What does the 8 represent? Click all correct answers

a)

the number of protons

b)

the number of neutrons

c)

the atomic mass

d)

the atomic number

e)

the number of valence electrons

27.

Which section contains the most elements?

a)

metals

b)

nonmetals

c)

metalloids

d)

halogens

e)

gases

28.

what is the name of group 1A?

a)

halogens

b)

noble gases

c)

alkali metals

d)

alkaline earth metals

e)

nitrogen family

29.

what is the name of group 2A?

a)

transition metals

b)

halogens

c)

alkali metals

d)

alkaline earth metals

e)

rare earth elements

30.

what are groups 3-12 called?

a)

transition metals

b)

nonmetals

c)

metalloids

d)

halogens

e)

non-metals

31.

where are the metalloids found?

a)

groups 3-12

b)

stair step line

c)

group 8

d)

at the bottom of the periodic table

e)

period 7

32.

what group number are the halogens?

a)

8A

b)

groups 3-12

c)

2A

d)

7A

e)

1A

33.

what group are the noble gases?

a)

7A

b)

8A

c)

1A

d)

At the bottom of the periodic table

e)

6A

34.

__________ would have some characteristics of metals and some characteristics of nonmetals.

a)

metalloids

b)

transition metals

c)

noble gases

d)

rare earth elements

35.

Which elements are located at the bottom of the periodic table?

a)

halogens

b)

noble gases

c)

metalloids

d)

rare earth elements

e)

non-metals

36.

How many valence electrons do alkali metals contain?

a)

1

b)

2

c)

7

d)

8

e)

3

37.

Why are noble gases unreactive?

a)

they all contain 2 valence electrons

b)

they have full outer energy levels

c)

they have even numbers of protons

d)

they are radioactive

38.

Which group is the least reactive?

a)

halogens

b)

rare earth elements

c)

noble gases

d)

transition metals

e)

alkali metals

39.

Which metals are the most reactive?

a)

alkali metals

b)

alkaline earth metals

c)

transition metals

d)

lanthanides and actinides

e)

boron family

40.

Who is responsible for the modern arrangement of the periodic table?

a)

Rutherford

b)

Einstein

c)

Bohr

d)

Mendeleev

e)

JJ Thomson

41.

Click all that are characteristic of metals

a)

malleable

b)

good conductors of electricity

c)

brittle

d)

ductile

e)

dull

42.

Click all the characteristics of non-metals

a)

poor conductors

b)

ductile

c)

brittle

d)

have luster

e)

mostly gases

43.

Pick all of the diatomic elements

a)

H

b)

F

c)

I

d)

C

e)

Ne

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