wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

Periodicity and stability

Total questions: 49

Worksheet time: 44mins

Name
Class
Date
1.

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

a)

6

b)

8

c)

4

d)

2

2.

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

a)

3

b)

4

c)

5

3.

How many valence electrons does Tin (Sn) have?

a)

8

b)

7

c)

5

d)

4

4.

How many valence electrons does Lithium (Li) have?

a)

8

b)

1

c)

5

d)

2

5.

How many valence electrons does Bromine (Br) have?

a)

5

b)

6

c)

7

d)

8

6.
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.
7.

Which of these is incorrect?

a)
b)
8.

Which of these is correct?

a)
b)
c)
9.

Which element is this?

a)

Nickel

b)

Neon

c)

Sodium

d)

Nitrogen

10.

What is this element?

a)

Beryllium (atomic #4)

b)

Boron (atomic #5)

c)

Carbon (atomic #6)

d)

Nitrogen (atomic #7)

11.

How many valence electrons?

a)

2

b)

3

c)

4

d)

5

12.

How many valence electrons does Helium Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

13.

How many valence electrons does Magnesium Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

14.

How many valence electrons are found in atoms of group 14?

a)

4

b)

3

c)

14

d)

16

15.
Which group has the greatest number of valence electrons?
a)
1
b)
14
c)
18
d)
16
16.
How many valence electrons are found in atoms of group 1?
a)
7
b)
6
c)
4
d)
1
17.

Which elements have the most similar chemical properties?

a)

boron and carbon

b)

oxygen and sulfur

c)

aluminum and bromine

d)

argon and silicon

18.

When trying to identify an unknown element, a scientist determines what other elements reacts with chemically. Which property of the unknown element determines the other element it reacts with?

a)

The total number of neutrons in the unknown element

b)

The total number of particles in the nucleus of the unknown element

c)

The number of protons in the nucleus of the unknown element

d)

The number of valence electrons in the unknown element

19.

What group is the most reactive metals?

a)

2

b)

18

c)

1

d)

16

20.

What group is the most reactive non metals?

a)

1

b)

17

c)

2

d)

1

21.

Why are halogens so reactive?

a)

They want to get rid of their only valance electron

b)

They only need one more electron

c)

They are non reactive, they have a full shell

22.

How do electrons of an element determine that element's reactivity?

a)

If the valence shell has missing electrons it is very reactive to attract or lose more electrons.

b)

If the valence shell has a full ring of electrons it is very reactive because it needs more.

c)

If the valence shell has a full shell of electrons it is very reactive because it is already full.

d)

If the valence shell has missing electrons it is not reactive because it is missing electrons.

23.

Appear Vertically on the periodic table

a)

Periods

b)

Groups

24.

Which statement is NOT accurate describing the element krypton?

a)

The element has 36 protons

b)

The element has 48 neutrons

c)

The element has 6 valence electrons

d)

The element has properties similar to neon

25.

Where are valence electrons located on the model?

a)

Near the nucleus

b)

In the middle of the atom

c)

At the innermost level

d)

At the outermost level

26.

Which of the following is a correct electron dot structure?

a)
b)
c)
d)
27.

Which of the following is the correct electron dot structure for nitrogen?

a)
b)
c)
d)
28.

What are the elements (Be, Mg, Ca,...) in Group 2 called?

a)

Alkali metals

b)

Alkaline earth metals

c)

Halogens

d)

Noble Gases

29.

USE THE PERIODIC TABLE

How many dots would an electron dot diagram for Calcium (Ca) have?

(Click on image to enlarge it or use your own periodic table.)

a)

20

b)

2

c)

40

d)

4

30.

The _____ the element is in determines the number of valence electrons it has.

a)

period/row

b)

group/column

31.

According to the Octet Rule, atoms of elements react with each other in order to attain ____ electrons in their outermost energy level or shell.

a)

2

b)

4

c)

6

d)

8

e)

10

32.

All of the elements in column 18 or group 8A have 8 electrons EXCEPT ______, which is actually stable with only 2 electrons.

a)

Hydrogen

b)

Helium

c)

Neon

d)

Fluorine

33.

States that atoms react in order to become stable like a noble gas.

a)

octet rule

b)

electron rule

c)

ionic rule

d)

coordination rule

34.

What is the chemical formula of this substance?

a)

HO

b)

OH

c)

H2O

d)

H2O2

35.
Is water an element or a compound?
a)
Element
b)
Compound
36.
A compound consists of two or more elements bound together.
a)
True
b)
False
37.
Is salt (NaCI) a compound or a element
a)
Compound
b)
element
38.
How many carbon atom/s are present in the compounds CaCO3?
a)
1
b)
2
c)
3
d)
4
39.
Can compounds be found in the periodic table?
a)
Yes
b)
No
40.
Element is a
a)
pure substance
b)
compound
c)
mixture
d)
molecule
41.

What family is highlighted in the picture?

a)

Alkali Metals

b)

Alkaline Earth Metals

c)

Halogens

d)

Noble Gases

42.

What family is highlighted in the picture?

a)

Alkali Metals

b)

Alkaline Earth Metals

c)

Halogens

d)

Noble Gases

43.

What family is highlighted in the picture?

a)

Boron Group

b)

Alkaline Earth Metals

c)

Transition Metals

d)

Lanthanides

44.

What family is highlighted in the picture?

a)

Boron Group

b)

Halogens

c)

Transition Metals

d)

Noble Gases

45.

What family is highlighted in the picture?

a)

Lanthanides

b)

Actinides

c)

Transition Metals

d)

Halogens

46.

What family is highlighted in the picture?

a)

Lanthanides

b)

Actinides

c)

Transition Metals

d)

Halogens

47.

What group of metals is the MOST reactive?

a)

Transition Metals

b)

Metalloids

c)

Alkaline Earth Metals

d)

Alkali Metals

48.

What type of elements are green in the picture?

a)

Nonmetals

b)

Metals

c)

Metalloids

49.

What type of elements are blue in the picture?

a)

Nonmetals

b)

Metals

c)

Metalloids

Similar Resources on Wayground

Chemistry Part One (re:2026) Use with Periodic Table

44 questions

Chemistry Part One (re:2026) Use with Periodic Table

quiz

Worksheet

•

8th Grade

Straight Line Motion

49 questions

Straight Line Motion

quiz

Worksheet

•

8th Grade

Physics Test Review

48 questions

Physics Test Review

quiz

Worksheet

•

8th Grade

TCAP #6

50 questions

TCAP #6

quiz

Worksheet

•

6th - 8th Grade

Intro to Matter Test Review

50 questions

Intro to Matter Test Review

quiz

Worksheet

•

8th Grade

Heat Transfer

45 questions

Heat Transfer

quiz

Worksheet

•

8th Grade

COLOR & LIGHT

52 questions

COLOR & LIGHT

quiz

Worksheet

•

7th - 10th Grade

Cambridge Checkpoint Science 8: Light

44 questions

Cambridge Checkpoint Science 8: Light

quiz

Worksheet

•

6th - 8th Grade