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Chemistry of Life

Total questions: 68

Worksheet time: 2hrs 39mins

Name
Class
Date
1.
A negatively charged particle moving around the nucleus of an atom
a)
neutron
b)
proton
c)
electron 
d)
ion
2.
What particle is found in the nucleus and has no charge?
a)
electron
b)
neutron
c)
proton
d)
atom
3.
An atom becomes negatively charged by
a)
gaining an electron
b)
losing an electron
c)
losing a proton
gaining a neutron
4.
The space surrounding the nucleus of an atom contains
a)
protons
b)
electrons
c)
neutrons
d)
ions
5.
Number of protons that an atom has
a)
Atomic symbol
b)
Atomic Number
c)
Atomic Mass
d)
Mass Number
6.
Bond created by the sharing of electrons
a)
Ionic Bond
b)
Hydrogen Bond
c)
Covalent Bond
d)
van der Waals
7.
A charged atoms (caused by gain or loss of electrons)
a)
Ion
b)
molecule
c)
element
d)
compound
8.
What is the smallest unit of matter that cannot be broken down by chemical means?
a)
Atom
b)
Element
c)
Ion
d)
Isotope
9.
What is the strongest of all the bonding types?
a)
Covalent
b)
Ionic
c)
Hydrogen
d)
Metallic
10.

A negatively charged particle is called

a)

cation

b)

ion

c)

anion

d)

electron

11.

A positively charged particle is called

a)

cation

b)

ion

c)

anion

d)

electron

12.

What particle is found in the nucleus and has a positive charge?

a)

electron

b)

neutron

c)

proton

d)

atom

13.

Atomic mass is made up of what two subatomic particles

a)

protons and electrons

b)

electrons and neutrons

c)

protons and neutrons

d)

protons and anions

14.

If the atomic mass of Nickel is 59 and the atomic number is 28, How many neutrons does it have?

a)

28

b)

59

c)

77

d)

31

15.

If the atomic mass of Nickel is 59 and the atomic number is 28, How many electrons does it have?

a)

28

b)

59

c)

77

d)

31

16.

The path in which an electron travels is called?

a)

electron cloud

b)

orbit/shell

c)

cation

d)

electron

17.

Outermost electrons are called

a)

valence electrons

b)

bonding electrons

c)

electron cloud

d)

valence protons

18.

The Groups on the periodic table tell you what piece of information?

a)

how many valence electrons

b)

how many shells/orbits

c)

how many electrons

d)

how many protons

19.

The periods on the periodic table tell you what piece of information?

a)

how many valence electrons

b)

how many shells/orbits

c)

how many electrons

d)

how many protons

20.
Ionic bonds form between metals and ____.
a)
metalloids
b)
metals
c)
nonmetals
21.
How do covalent bonds form?
a)
Donating & receiving valence e- between atoms.
b)
Opposite slight charges attract each other between compounds.
c)
Scientists are still not sure how they form.
d)
Sharing valence e- between atoms.
22.
What two types of atoms make a covalent bond?
a)
2 Nonmetals
b)
1 Nonmetal and 1 Metal
c)
2 Metals
d)
2 Noble Gases
23.

If an atom has no charge, which of the following must be true?

a)

It has more neutrons than protons or electrons.

b)

There are only neutrons inside the atom.

c)

Its number of protons is equal to its number of electrons.

d)

The neutrons in the atom outnumber the electrons and protons.

24.

Why don't noble gases form bonds?

a)

Noble gases do form bonds

b)

They all have a full octet

c)

They only bond with each other

25.
Is hydrogen considered a metal or a non-metal?
a)
A metal
b)
Nonmetal
c)
Metalloid
26.
Ionic or covalent?
H2O
a)
Ionic
b)
Covalent
27.

Which element in period four is a metalloid? (use periodic table)

a)

Silicon

b)

Gallium

c)

Arsenic

d)

Titanium

28.

An element with five valence electrons is (use periodic table)

a)

phosphorus

b)

oxygen

c)

beryllium

d)

rubidium

29.
?
a)
Lithium
b)
Boron
c)
Carbon
d)
Neon
30.
What element is represented in this Bohr Model? 
a)
Carbon
b)
Hydrogen
c)
Aluminum
d)
Lithium
31.
How many electrons does potassium K contain? (click to see image)
a)
19
b)
39
c)
20
d)
40
32.
How many electrons should Flourine have around its Lewis dot model?
a)
5
b)
6
c)
7
d)
8
33.

What are the components of a water molecule?

a)

H3O

b)

H2O2

c)

H2O

d)

HO2

34.

water is a dissolver so we call it

a)

solvent

b)

solute

c)

mixture

d)

solution

35.

Water has an unequal electron distribution this is called

a)

polar

b)

non-polar

c)

cohesion

d)

solution

36.

salt in salt water is called

a)

solvent

b)

non-polar

c)

solute

d)

solution

37.

same substance sticks to itself

a)

adhesion

b)

hydrogen bond

c)

cohesion

d)

capillary action

38.

a substance sticks to other substances

a)

adhesion

b)

hydrogen bond

c)

cohesion

d)

capillary action

39.

pH measures

a)

[H+]

b)

[H-]

c)

[OH+]

d)

[OH-]

40.

lower [H+] than water

a)

acid

b)

base

c)

neutral

41.

higher [H+] than water

a)

acid

b)

base

c)

neutral

42.

equal [H+] to [OH-]; such as water

a)

acid

b)

base

c)

neutral

43.

pH of 6.9-0

a)

acid

b)

base

c)

neutral

44.

pH of 7

a)

acid

b)

base

c)

neutral

45.

pH of 7. 1-14

a)

acid

b)

base

c)

neutral

46.

equal distribution of electrons

a)

polar

b)

cohesion

c)

happy molecules

d)

non-polar

47.

bond that holds one water molecule to another water molecule is called

a)

hydrogen

b)

ionic

c)

covalent

d)

non-polar

48.

primary energy source

a)

proteins

b)

carbohydrates

c)

lipids

d)

nucleic acid

49.

monomer is glucose

a)

proteins

b)

carbohydrates

c)

lipids

d)

nucleic acid

50.

monomer is amino acid

a)

proteins

b)

carbohydrates

c)

lipids

d)

nucleic acid

51.

monomer is fatty acid + glycerol

a)

proteins

b)

carbohydrates

c)

lipids

d)

nucleic acid

52.

monomer is nucleotide

a)

proteins

b)

carbohydrates

c)

lipids

d)

nucleic acid

53.

transmits heredity material and stores it

a)

proteins

b)

carbohydrates

c)

lipids

d)

nucleic acid

54.

fights infection

a)

proteins

b)

carbohydrates

c)

lipids

d)

nucleic acid

55.

controls rate of chemical reactions; relates to metabolism

a)

proteins

b)

carbohydrates

c)

lipids

d)

nucleic acid

56.

repairs and rebuilds tissue and organs

a)

proteins

b)

carbohydrates

c)

lipids

d)

nucleic acid

57.

cell membrane is composed of this

a)

proteins

b)

carbohydrates

c)

lipids

d)

nucleic acid

58.

cholesterol

a)

proteins

b)

carbohydrates

c)

lipids

d)

nucleic acid

59.

glycogen

a)

proteins

b)

carbohydrates

c)

lipids

d)

nucleic acid

60.

DNA

a)

proteins

b)

carbohydrates

c)

lipids

d)

nucleic acid

61.

hormones

a)

proteins

b)

carbohydrates

c)

lipids

d)

nucleic acid

62.

animals who hibernate need this for long term energy and insulation

a)

proteins

b)

carbohydrates

c)

lipids

d)

nucleic acid

63.

hereditary material

a)

proteins

b)

carbohydrates

c)

lipids

d)

nucleic acid

64.

titin ( muscle flexibility)

a)

proteins

b)

carbohydrates

c)

lipids

d)

nucleic acid

65.

antibodies

a)

proteins

b)

carbohydrates

c)

lipids

d)

nucleic acid

66.

does not mix with water because is it non-polar

a)

proteins

b)

carbohydrates

c)

lipids

d)

nucleic acid

67.

long term energy storage in plants; stored in roots

a)

starch

b)

hormones

c)

antibodies

d)

glycogen

68.

fights infection

a)

starch

b)

hormones

c)

antibodies

d)

glycogen

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