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Atoms elements and Compounds for E

Total questions: 53

Worksheet time: 36mins

Name
Class
Date
1.
What is a compound?
a)
an atom with more electrons than protons
b)
a substance in which the atoms of two or more elements are combined together
c)
an atom with more neutrons than protons
d)
a substance in which the atoms of three or more elements are combined together
2.
Atoms combine to form _______. 
a)
electrons
b)
molecules
c)
nuclei
d)
neutrons
3.
What is the picture displayed?
a)
atom
b)
element
c)
molecule
d)
compound
4.

HCl is the formula for hydrochloric acid. H2SO4 is the formula for sulphuric acid. Which acid is HNO3 the formula for?

a)

Nitrate acid

b)

Nitrogen acid

c)

Nitric acid

d)

Nitrogenous acid

5.

Which element has the symbol Na on the periodic table?

a)

Nitrogen

b)

Nadium

c)

Sodium

d)

Sulphur

6.

Which of these is unique to each element?

a)

the mass number

b)

the proton number

c)

the periodic number

d)

the group number

7.

When drawing the electrons around an atom, we can place up to two in the first shell, and up to eight in the second and third shells. Sodium has 11 electrons - how should these be arranged in a diagram of a sodium atom?

a)

2 in the first shell, 8 in the second shell, 2 in the outer shell.

b)

2 in the first shell, 8 in the second shell, 1 in the outer shell.

c)

2 in the first shell, 8 in the second shell, 0 in the outer shell.

d)

2 in the first shell, 8 in the second shell, 8 in the outer shell.

8.
Which two particles make up the nucleus of an atom?
a)
protons and electrons
b)
protons and neutrons
c)
molecules and compounds
d)
neutrons and electrons
9.
What is at the center of every atom?
a)
An electron
b)
A compound
c)
A nucleus
d)
A molecule
10.
What is the role of an electron in an atom?
a)
live inside the nucleus and carry a neutral charge
b)
circle the nucleus and have a positive charge
c)
live inside the nucleus and have a negative charge
d)
circle the nucleus and have a negative charge
11.
In an atom, what is the number of protons equal to?
a)
The number of electrons
b)
The number of molecules
c)
The number of neutrons
d)
The number of nucleii
12.
What is the charge on a proton? 
a)
positive
b)
neutral
c)
negative
13.
What is the charge of an electron? 
a)
positive
b)
neutral
c)
negative
14.
Which part of an atom has no charge?
a)
protons
b)
neutrons
c)
electrons
d)
atoms
15.

This picture represents which of the following?

a)

Element

b)

Compound

c)

Molecule

16.

This picture represents which of the following?

a)

Element

b)

Compound

c)

Molecule

17.

This picture represents which of the following?

a)

Element

b)

Compound

c)

Molecule

18.

You can find all 118 _______ on the Periodic Table.

a)

Atoms

b)

Elements

c)

Molecules

d)

Compounds

19.
What is the mass number?
a)
Number of protons plus neutrons
b)
Number of protons plus electrons
c)
Number of neutrons plus electrons
20.
What is the atomic number?
a)
Number of protons plus electrons
b)
Number of protons
c)
Number of protons plus neutrons
d)
Number of protons, neutrons and electrons
21.
What is the charge on a proton?
a)
positive 1
b)
0
c)
negative 1
22.
What is the charge on a neutron?
a)
positive 1
b)
0
c)
negative 1
23.
What is the charge on an electron?
a)
positive 1
b)
0
c)
negative 1
24.
In what order are elements on the modern periodic table?
a)
Mass number
b)
Atomic Mass
c)
Atomic number
d)
Relative Atomic Mass
25.

What sub-atomic particle is labelled A?

a)

Neutron

b)

Electron

c)

Ion

d)

Atom

26.

What sub-atomic particle is labelled B?

a)

Neutron

b)

Electron

c)

Ion

d)

Atom

27.

Which atom has 4 electrons?

a)

Atom A

b)

Atom B

c)

Atom C

d)

Atom D

28.

Which atom would be found in group 2?

a)

Atom A

b)

Atom B

c)

Atom C

d)

Atom D

29.

Carbon has 6 electrons. Which atom is carbon?

a)

Atom A

b)

Atom B

c)

Atom C

d)

Atom D

30.

What is the relative atomic mass of lithium?

a)

7

b)

3

c)

4

d)

10

31.

What is the atomic number of lithium?

a)

7

b)

3

c)

4

d)

10

32.

How many neutrons does a lithium atom have?

a)

7

b)

3

c)

4

d)

10

33.

What is the mass and charge of an electron?

a)

Mass = 1, Charge = Neutral

b)

Mass = 1, Charge = Positive

c)

Mass = 1, Charge = Negative

d)

Mass = almost 0, Charge = negative

34.

What is the mass and charge of an Proton?

a)

Mass = 1, Charge = Neutral

b)

Mass = 1, Charge = Positive

c)

Mass = 1, Charge = Negative

d)

Mass = almost 0, Charge = negative

35.

What is the mass and charge of an Neutron?

a)

Mass = 1, Charge = Neutral

b)

Mass = 1, Charge = Positive

c)

Mass = 1, Charge = Negative

d)

Mass = almost 0, Charge = negative

36.

What is an element?

a)

2 or more substance not chemically combined

b)

substance made of 1 type of atom

c)

substance made of more than one type of atom chemically joined together

d)

atoms of the same element with different number of neutrons

37.

What is an compound?

a)

2 or more substance not chemically combined

b)

substance made of 1 type of atom

c)

substance made of more than one type of atom chemically joined together

d)

atoms of the same element with different number of neutrons

38.

What is an mixture?

a)

2 or more substance not chemically combined

b)

substance made of 1 type of atom

c)

substance made of more than one type of atom chemically joined together

d)

atoms of the same element with different number of neutrons

39.

What is an isotope?

a)

2 or more substance not chemically combined

b)

substance made of 1 type of atom

c)

substance made of more than one type of atom chemically joined together

d)

atoms of the same element with different number of neutrons

40.

How many electrons can you put in the 1st, second and third electron shells?

a)

4,4,8

b)

2,8,8

c)

4,8,8

d)

1,2,8

41.

How do you calculate the number of neutrons in an atom?

a)

atomic number + mass number

b)

Mass number - atomic number

c)

Atomic number - mass number

d)

Mass number x atomic number

42.
Most of the elements on the periodic table are classified as _____.
a)
Metals
b)
Nonmetals
c)
Metalloids
d)
Periods
43.

This group of elements have properties that are opposite those of metals. ______________________

a)

luster

b)

nonmetals

c)

metalloids

d)

metals

44.

Metals are found on the ______________ side of the periodic table.

a)

nonmetals

b)

left

c)

right

d)

metals

45.

Elements in the same group have : (2 correct answers)

a)

Similar chemical properties

b)

Similar names

c)

Same number of outer (valence) electrons)

d)

The same number of protons

46.

What is the name of this ion? SO42-

a)

sulfur tetroxide ion

b)

sulfonate

c)

sulfate

d)

sulfide

47.

For the following group of ions, choose the 2 answers that contains ions with the wrong charge.

a)

Li+ K+ Ag+ H+

b)

Ca2+ Zn2+ Fe2+ Al2+

c)

Cl- Br- I- N-

d)

O2- S2- SO42- CO2-

48.

What is the formula for lithium bromide?

a)

LiBr

b)

LiBr2

c)

Li2Br

d)

Li2Br2

49.

What is the formula for iron(II) oxide?

a)

FeO2

b)

FeO

c)

Fe2O

d)

Fe2O3

50.
The formula of this atom when it becomes an ion would be
a)
N-2
b)
N+3
c)
N-3
d)
N+2
51.
Na +  and  S -2
a)
Na2S
b)
NaS2
c)
Na2S2
d)
NaS
52.
K +  and  N-3
a)
KN
b)
KN3
c)
K3N3
d)
K3N
53.
The chemical formula for an ionic compound of potassium and oxygen is
a)
KO.
b)
K2O.
c)
K2O2.
d)
KO2.

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