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Atoms & Molecules 2

Total questions: 70

Worksheet time: 1hrs 12mins

Name
Class
Date
1.

Generally, atoms form bonds so that _______________.

a)

Each atom loses its electrons

b)

Each atom has a stable electron configuration

c)

Each atom has an unstable electron configuration

d)

Each atom gains electrons

2.

Generally low melting and boiling points

a)

Ionic compounds

b)

Covalent compounds

3.

Poor electrical conductivity

a)

Ionic compounds

b)

Covalent compounds

4.

Conducts electricity well when melted or dissolved

a)

Ionic compounds

b)

Covalent compounds

5.

NaCl

a)

ionic

b)

covalent

c)

metallic

6.

The electrons in a polar covalent molecule are shared...

a)

Evenly

b)

Unevenly

c)

Electrons are not shared

d)

None of the Above

7.

The electrons in a nonpolar covalent molecule are shared...

a)

Evenly

b)

Unevenly

c)

Electrons are not shared

d)

None of the Above

8.

The electrons in an ionic molecule are shared...

a)

Evenly

b)

Unevenly

c)

Electrons are not shared

d)

None of the Above

9.

Proposed that electrons move around the nucleus in specific layers, or shells.

a)

Bohr

b)

Rutherford

c)

Chadwick

d)

Thomson

10.

This picture best represents ___________________ atomic model.

a)

Thomson's

b)

Dalton's

c)

Bohr's

d)

Chadwick's

11.

Which one of these is Dalton's Model?

a)
b)
c)
d)
12.

Which model was created after the discovery of the electron cloud?

a)

Dalton's

b)

Rutherford's

c)

Quantum Mechanical

d)

Plum Pudding

13.

Who discovered electrons?

a)

Rutherford

b)

Bohr

c)

J.J. Thompson

d)

Democritus

14.

What are the four parts of Dalton's Atomic Theory?

(select 4)

a)

Atoms are Tiny, Indivisible particles

b)

Atoms of one element are all the same

c)

Atoms of different elements are different

d)

Compounds form by combining atoms

e)

Atoms of the opposite force attract each other

15.

Who came up with the theory that electrons travel in specific

circular orbits around the nucleus corresponding to discrete energy levels?

a)

Niels Bohr

b)

James Chadwick

c)

Erwin Schrodinger

d)

John Dalton

16.

Who created this model?

Planetary Model

a)

Niels Bohr

b)

James Chadwick

c)

John Dalton

d)

JJ Thomson

17.

What is the chemical symbol for iron?

a)

I

b)

Ir

c)

Fe

d)

R

18.

What is iron's atomic number?

a)

12

b)

26

c)

55.85

d)

55

19.

Titanium is in group 4. What period is it in?

a)

2

b)

3

c)

4

d)

5

20.

Zinc is in period 4. What group is it in?

a)

12

b)

13

c)

14

d)

15

21.

What family is copper in?

a)

alkali metals

b)

alkaline earth metals

c)

noble gases

d)

transition metals

22.

What is iodine's atomic mass?

a)

53

b)

126.9

c)

130

d)

52

23.

What element is the chemical symbol Au?

a)

gold

b)

silver

c)

Augium

d)

Auxiom

24.

What is silver's chemical symbol?

a)

S

b)

Ag

c)

Si

d)

I

25.

What is silver's chemical symbol?

a)

S

b)

Ag

c)

Si

d)

I

26.

What family is on the far right of the periodic table?

a)

alkali metals

b)

transition metals

c)

actinoids

d)

noble gases

27.

What family is on the far left of the periodic table?

a)

noble gases

b)

alkali metals

c)

transition metals

d)

actinoids

28.

What family is silicon in?

a)

alkali metals

b)

noble gases

c)

metalloids

d)

alkaline earth metals

29.

What is mercury's chemical symbol?

a)

Me

b)

M

c)

Hg

d)

Mc

30.

What element is in period 6, group 14?

a)

tin

b)

lead

c)

copper

d)

zinc

31.

Groups run:

a)

up and down

b)

left to right

32.

Periods run:

a)

up and down

b)

left to right

33.

Which two elements share common characteristics based on the periodic table?

a)

Sodium and Magnesium

b)

Chlorine and Sulfur

c)

Argon and Neon

d)

Calcium and Bromine

34.

How are the 3 elements in the picture organized on the periodic table?

a)

Niobium and cobalt have the same energy levels.

b)

Cobalt and scandium have the same energy levels.

c)

Cobalt and scandium have the same characteristics.

d)

Niobium and cobalt have the same characteristics.

35.

Metals are on the:

a)

Left side

b)

Right Side

c)

Stairstep

36.

Metalloids are on the:

a)

Left side

b)

Right Side

c)

Stairstep

37.

Nonmetals are on the:

a)

Left side

b)

Right Side

c)

Stairstep

38.

A student is studying a mystery substance. It breaks easily. It has a very dull luster. It doesn't conduct any electricity. What is the most likely substance this is?

a)

Metal

b)

Metalloid

c)

Nonmetal

39.

What are the vertical columns on the periodic called?

a)

groups

b)

periods

c)

nonmetals

d)

metals

e)

metalloids

40.
How many atoms of iodine are in a mole of iodine?
a)
53
b)
63.55g
c)
126.9
d)
6.02 x 1023
41.
The number 6.02 x 1023 is called...
a)
Obama's number
b)
Bohr's number
c)
Trump's number
d)
Avogadro's number
42.
We use the periodic table to calculate...
a)
mass
b)
molar mass
c)
moles
43.
What is the molar mass of C2H4O2?
a)
40g
b)
50g
c)
60g
d)
68g
44.
How do we get mass from moles?
a)
multiply by avogadro's number
b)
multiply by molar mass
c)
divide by avogadro's number
d)
divide by molar mass
45.
What would be the mass of 1.5mol H2O
a)
20
b)
27
c)
32
d)
40
46.
What is the mass of 0.75 moles of (NH4)3PO4?
a)
101.75 g
b)
121.75 g
c)
111.75 g
d)
131.75 g
47.
What is the mole used for? 
a)
To measure the amount of grams in a substance
b)
To measure the amount of atoms or molecules in a substance
c)
To measure the amount of energy in a substance
d)
To measure the amount of bonding in a substance 
48.
Where do you look to calculate the molar mass?
a)
avogadros number
b)
periodic table 
49.

Carbon is shown on the periodic table with the following symbol. How many protons in a Carbon atom?

a)

1

b)

6

c)

12

d)

Can not be determined.

50.

Which of the following is the best definition for matter?

a)

anything that has mass and volume

b)

the amount of space a substance occupies

c)

how much something weighs on earth

51.

Which of the following make up parts of an atom?

a)

neutron

b)

proton

c)

electron

d)

ultron

52.

A charged atom is called a(n)...

a)

electron.

b)

ion.

c)

proton.

d)

acid.

53.

Pre-Check:


Why is the element sodium have a charge of zero?

a)

There are 12 neutrons.

b)

It has 11 p+ and 11 e-.

c)

It has 11 p+ and 10 e-.

54.

Sodium (Na) has 1 electron (e-) in its outer shell (orbital). How can it make a full outer shell? (HINT: Think of which option would be "easier" for the atom.)

a)

Giving away or donating the outer electron.

b)

Taking on or accepting 7 more electrons.

55.

Which of the following would accept 1 e- and become a -1 charge like Cl? (HINT: Find Group 17)

a)

F

b)

Ne

56.

Which of the following would donate 1 e- and become a +1 charge like Na? (HINT: Find Group 1)

a)

Li

b)

He

57.
Two atoms of different elements will definitely have different numbers_____
a)
Nuclei
b)
Protons
c)
Neutrons
d)
Electrons
58.
Although carbon's three isotopes are carbon-12, carbon-13, and carbon-14, its average atomic mass is 12.01 because
a)
Carbon-12 is the heaviest isotope
b)
Carbon-12 is the most useful to humans
c)
Carbon-12 is the most common isotope
59.
An ion forms when an atom gains or loses
a)
Protons
b)
Neutrons
c)
Electrons
60.
A neutral atom would become an ion that has a charge of 2+ by 
a)
Losing two protons
b)
Losing two neutrons
c)
Losing two electrons
61.
If neutral copper atom (atomic number 29) becomes an ion that has a charge of 2+, how many electrons does the resulting ion have?
a)
27
b)
28
c)
29
d)
31
62.
Which phrase describes two atoms that are isotopes
a)
Same mass number, same atomic number
b)
Same mass number, different atomic number
c)
Different mass number, same atomic number
d)
Different mass number, different atomic number
63.
What information would allow you to determine whether two atoms are of the same or different elements
a)
The charge on each atom
b)
The number of neutrons each has
c)
The number of protons in their nuclei
d)
The location of the electrons in their electron clouds
64.
Define Atom
a)
It is the smallest piece of an element that still represents that element
b)
Is an element has the electrons in their electron cloud
c)
A positively charged isotope
65.
How are Protons and Neutrons similar
a)
Both are in the nucleus of the atom and they both have the relative mass of 1
b)
They both have alpha particles and have the relative mass of 2
c)
They both have 1 high-energy electron and different elements
66.
How are Protons and Neutrons similar
a)
Both are in the nucleus of the atom and they both have the relative mass of 1
b)
They both have alpha particles and have the relative mass of 2
c)
They both have 1 high-energy electron and different elements
67.
What is an ion?
a)
A Charged Atom
b)
A Large Atom
c)
A Small Atom
d)
A Cute Atom
68.
Cations are...
a)
Positive
b)
Negative
c)
Neutral
d)
Purring
69.
Anions are...
a)
Positive
b)
Negative
c)
Neutral
d)
Crying
70.
Which particles change the charge in atoms when ions are formed?
a)
Protons
b)
Electrons
c)
Neutrons
d)
Kittens

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