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2nd semester review

Total questions: 24

Worksheet time: 20mins

Name
Class
Date
1.

What period is Lead (Pb) in?

a)

6

b)

4

c)

Metals

d)

4A

2.

What category is silicon (Si) a part of?

a)

Metal

b)

Nonmetal

c)

Metalloid

d)

Halogens

3.

How many neutrons does Bromine (Br) have?

a)

35

b)

80

c)

45

d)

7

4.

How many valence electrons does a carbon atom have?

a)

8

b)

4

c)

2

d)

6

5.
The atomic number tells you what?
a)
number of electrons
b)
number of protons
c)
number of neutrons
d)
both electrons and protons in an atom.
6.
The atoms along the staircase are called 
a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
7.

Elements in a ..................have similar chemical properties.

a)

period

b)

group

c)

row

d)

donut

8.
A proton is....
a)
A negatively charged subatomic particle
b)
A positively charged subatomic particle
c)
A neutrally charged subatomic particle
d)
The only subatomic particle located in the nucleus
9.
A molecule is
a)
two or more atoms bonded together
b)
one type of atom
c)
smaller than an atom 
d)
an element
10.
Name this compound: H2O
a)
Water
b)
Carbon dioxide
c)
Hydrogen peroxide 
d)
Sulfuric acid
11.

Which of the following is not a compound?

a)

HCl

b)

Cl2

c)

NaCl

d)

CO2

12.
How many elements are in C6H12O6?
a)
1
b)
2
c)
3
d)
4
13.
What is krypton?
a)
element
b)
compound
c)
mixture
14.
What is gold?
a)
element
b)
compound
c)
mixture
15.
(Element or Compound)
       C2H8O 
a)
Element
b)
Letters
c)
Numbers
d)
Compound
16.
How many atoms are there TOTAL in:
H2SO4
a)
6
b)
5
c)
7
d)
3
17.

An ionic bond forming involves...

a)

one atom taking electrons from another atom

b)

two atoms sharing electrons

c)

all atoms behaving like positive Cations in a sea of electrons

18.
Attractions between water molecules are called
a)
Covalent bonds
b)
Ionic bonds
c)
Polar bonds
d)
Hydrogen bonds
19.

When two atoms share electrons, a chemical bond is formed. This type of bond is called:

a)

covalent bond

b)

ionic bond

c)

crystal bond

d)

polyatomic bond

20.

Rule that states that atoms prefer to have eight electrons in their valence shell

a)

chemical formula

b)

chemical bond

c)

octet rule

d)

electronegativity

21.

A type of bond where electrons are transferred from one atom to another

a)

covalent bond

b)

ionic bond

c)

polar bond

d)

nonpolar bond

22.
What molecule is this?
a)
CO
b)
CO2
c)
C2O
d)
C2O2
23.
Ionic bonds form between metals and ____.
a)
metalloids
b)
metals
c)
nonmetals
24.
An ionic bond is the attraction between:
a)
oppositely charged ions
b)
similarly charged ions
c)
neutral ions
d)
neutral atoms

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