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Chemistry 2

Total questions: 50

Worksheet time: 25mins

Name
Class
Date
1.

Which of these is a chemical property of hydrogen?

a)

It is a metal

b)

It is flameable

c)

It is heavier than air

d)

It has 2 valence electrons

2.

What is another name for group?

a)

period

b)

family

c)

metals

d)

non-metals

3.

What is each horizontal row on the Periodic Table called?

a)

family

b)

group

c)

period

d)

unit

4.

Atoms make bonds using their...

a)

valence electrons

b)

protons

c)

neutrons

d)

central electrons

5.

How can you determine the total number of electrons in an atom that is not an ion?

a)

group number

b)

period number

c)

atomic mass number

d)

atomic number

6.

Proton

a)

negative charge

b)

positive charge

c)

no charge

d)

it depends on the location of the valence electrons

7.

Electrons

a)

positive charge

b)

negative charge

c)

no charge

d)

ionic charge

8.

Neutron

a)

positive charge

b)

negative charge

c)

no charge

d)

1 AMU per subatomic particle

9.

Which of the following is NOT a subatomic particle?

a)

proton

b)

neutron

c)

electron

d)

nucleus

10.

"Periodic" in the periodic table means...

a)

irregualr patterns - not predictable

b)

regular predictable patterns

c)

It has no punctuation

d)

a once in a lifetime occurance

11.

In groups 1, 2, & 3 - 18 the group number can be used to predict the...

a)

# of protons

b)

# of nuetrons

c)

# of electrons

d)

# of VALENCE electrons

12.

AMU

a)

Ths SI unit to measure the mass of elements/atoms - the mass of a proton or a nuetron

b)

The "amount most used"

c)

The mass of ALL subatomic particles

d)

American mass unit - used for electrons

13.

In what pattern do electrons fill electron shells?

a)

1, 2, 8, 18

b)

2, 8, up to 18

c)

2, 4, 6, 8, up to 18

d)

There is NO pattern!

14.

An atom with missing or extra electrons

a)

isotope

b)

moron

c)

boron

d)

ion

15.

Use your periodic table. How many valence electrons would Na have?

a)

11

b)

12

c)

2

d)

1

16.

How many valence electrons does oxygen have? Use your periodic table

a)

8

b)

6

c)

2

d)

16

17.

Use your PT to determine how many energy levels Neon has...

a)

1

b)

2

c)

3

d)

8

18.

Use your periodic table to determine how many valence electrons are in Neon.

a)

2

b)

4

c)

6

d)

8

19.

What is chlorine's oxidation number?

a)

2-

b)

2+

c)

1-

d)

1+

20.

What is the oxidation number for Mg? Use your PT

a)

2-

b)

1-

c)

2+

d)

3+

21.

Who is responsible for the Law of conservation of mass?

a)

Lavoisier

b)

Bohr

c)

Rutherford

d)

Dalton

22.

What kind of mixture is something like Kool-aide, where the color and other materials (solute) are mixed evenly throughout the solvent?

a)

suspension

b)

solution

c)

compound

d)

pure substance

23.

Which of the following is a heterogenous mixture?

a)

Sugar water

b)

Salt water

c)

Koolaide

d)

Tossed Salad

24.

Which of the following could NOT be considered pure?

a)

a compound like water

b)

any element

c)

any mixture - from salads to iced tea

25.

Breaking glass changes it's chemical make-up

a)

No - it is a physical change

b)

Yes - is changes the atomic arrancement

c)

Maybe - you'd need to look closely to see if any atoms were split.

26.

These elements are inert (will not chemically react).

a)

alkali metals - group 1

b)

alkali earth metals - group 2

c)

halogens - group 17

d)

nobel gases - group 18

27.

Use your PT to calculate the oxidation number of Cl

a)

1+

b)

1-

c)

7+

d)

7-

28.

Use your PT. What element has an oxidation number of 3+

a)

Al

b)

Si

c)

C

d)

Na

29.

Name an element with exactly 7 protons. Use your PT!

a)

Carbon

b)

Nitrogen

c)

Oxygen

d)

Aluminum

30.

Which of these elements has a full valence shell?

a)

He

b)

H

c)

Cl

d)

Mg

31.

Chemical bonds that share valence electrons...

a)

covalent

b)

ionic

c)

moronic

d)

no such thing

32.

A chemical bond where electrons are taken or given freely - the attraction is because of opposite charges.

a)

covalent bonds

b)

ionic bonds

c)

metallic bonds

d)

James Bonds

33.

An atom's overall volume is....

a)

mostly the nucleus

b)

mostly empty space

c)

mostly made up of quarks

d)

densely packed electrons

34.

Most of an atom's mass is located here:

a)

nucleus

b)

electron cloud

c)

valence shell

d)

atoms have zero mass!

35.

Meteloids have the properties of both metals and non-metals.

a)

Yes

b)

No

c)

No such elements

36.

Law of conservation of mass states...

a)

matter is created during chemical reacions that gain mass

b)

matter is destroyed during chemical reactions - always

c)

matter cannot be created or destroyed

d)

matter is ONLY destroyed in chemical reactions that lose mass

37.

Find Ag on your PT. What is one physical property?

a)

it oxidized black

b)

it is shiney gold metal

c)

it is a silvery-gray metal

d)

it is valuable

38.

If you had an atom with 12 electrons that was NOT an ion. What would it's approximate mass be in AMU? Use your PT.

a)

12

b)

36

c)

24

d)

48

39.

Use your PT to find an atom with 31 protons.

a)

Na

b)

N

c)

ga

d)

Ga

40.

How could Sodium have a full valence shell?

a)

By becoming an isotope

b)

By becoming an anion

c)

By becoming a cation

d)

It can never have a full valence shell

41.

Number of valence electrons to become stable

a)

1

b)

4

c)

8

d)

12

42.

This number on the PT tells you total electrons

a)

Atomic mass

b)

Atomic number

c)

Atomic number - rounded mass

d)

The period number - the group number

43.

Old idea alert - which of the following is NOT a colloid?

a)

Jello

b)

Toothpaste

c)

Cornstarch and water mixed

d)

Liquid water

44.

Old idea alert! What kind of mixture needs to be shaken before it is used - salad dressing (example).

a)

suspension

b)

solution

c)

colloid

d)

pure substance

45.

The bonding due to electrical charges...

a)

moronic bonding

b)

covalent bonding

c)

metallic bonding

d)

ionic bonding

46.

Atom modle was spheres or balls

a)

Dalton

b)

Democritus

c)

Bohr

d)

Rutherford

47.

Discovered the electron - came up with the cookie dough model.

a)

Democritus

b)

Dalton

c)

Thompson

d)

Rutherford & Chadwick

48.

Discovered the nuclues & neutrons by shooting alpha particles at gold foil.

a)

Democritus

b)

Dalton

c)

Rutherford & Chadwick

d)

Bohr

49.

Came up with the "Solar System" model for the atom

a)

Democritus

b)

Dalton

c)

Chadwich & Rutherford

d)

Bohr

50.

This is the most current theory of atomic structure:

a)

the Bohr model

b)

the cloud model

c)

the sphere model

d)

the cookie dough model

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