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Second Nine Weeks Review

Total questions: 25

Worksheet time: 44mins

Name
Class
Date
1.

a)

It is an electron, and it has a positive charge.

b)

It is an electron, and it has a negative charge.

c)

It is a proton, and it has a negative charge.

d)

It is a proton, and it has a positive charge.

2.

What is the atomic number of an element that has nine protons and ten neutrons?

a)

19

b)

9

c)

10

d)

1

3.

All of the atoms of Iodine have the same

a)

mass number

b)

atomic number

c)

number of neutrons

d)

number of nucleons

4.

760 L ___________ 7.6 kL

a)

greater than

b)

less than

c)

equal to

d)

not enough information

5.
How many neutrons does the isotope of lithium have?
a)
8
b)
3
c)
4
d)
5
6.
What quantities vary between isotopes of an element?
a)
protons, electrons, and atomic mass
b)
protons, electrons, and atomic number
c)
neutrons and electrons
d)
neutrons and atomic mass
7.
How many neutrons in C-14?
a)
6
b)
7
c)
14
d)
8
8.
In what part of an atom can protons be found?
a)
inside the electron
b)
inside the neutron
c)
inside the atomic nucleus
d)
inside the electron shells
9.
What do carbon-12 and carbon-14 have in common?
a)
they have same number of protons
b)
they have the same number of neutrons
c)
they have the same atomic mass
d)
they have the same atomic weight
10.
what is the name for the following?   mL
a)
megaliter
b)
megalift
c)
Meterliter
d)
milliliter
11.

The Olympic record for the high jump is just over 2.6 yards. What is that distance in feet? (3 ft = 1 yd)

a)

0.867 ft

b)

7.8 ft

c)

8.07 ft

d)

8.27 ft

12.
What unit should be in the denominator of the conversion factor?
a)
yards
b)
leagues
c)
feet
d)
fathoms
13.
What unit should be in the denominator of the conversion factor?
a)
yards
b)
leagues
c)
feet
d)
fathoms
14.

How many kilograms of calcium are there in 173 pounds of calcium? (1 pound = 454 grams; 1 kg = 1000 g)

a)

1.10 kg

b)

78.5 kg

c)

110 kg

d)

78500 kg

15.

These are found in the nucleus and have a neutral charge.

a)

proton

b)

electron

c)

neutron

16.
These will determine what element an atom is. 
a)
number of neutrons
b)
number of electrons
c)
number of atoms 
d)
number of protons 
17.

In an atom, the number of protons is equal to the number of ____________.

a)

energy levels

b)

neutrons

c)

neurons

d)

electrons

18.
An atom of the element with atomic number 6 always has _____.
a)
six protons in its nucleus
b)
an atomic mass of six
c)
more than six neutrons
d)
six electron clouds
19.

How many electrons does an Iodine atom have?

a)

53

b)

126

c)

73

d)

179

20.

How many electrons does a Copper atom have?

a)

63

b)

29

c)

92

d)

34

21.
What electrical charge does a proton have?
a)
+1
b)
0
c)
-1
d)
+2
22.
The total number of protons and neutrons in an atom is called the...
a)
Atomic number
b)
Proton number
c)
Mass number
d)
Weight number
23.

Atoms of the same element with a different number of neutrons

a)

Ion

b)

alloy

c)

Isotope

d)

Quarks

24.

987 mm = _____ cm

a)

98.7 cm

b)

9,870 cm

c)

9.87 cm

d)

0.987 cm

25.

8,400 mL = _____ L

a)

840 L

b)

84 L

c)

0.84 L

d)

8.4 L

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