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Interim reviewv

Total questions: 56

Worksheet time: 47mins

Name
Class
Date
1.

what type of reaction is in the image

a)

Nuclear fusion

b)

Nuclear fission

c)

nuclear reactor

d)

none of the above

2.
What is the correct formula for this molecule?
a)
Si4F
b)
SiF4
c)
SiF
d)
Si4F4
3.
Which is the correct name for CaBr2?
a)
Calcium Bromine
b)
Bromine Calcium
c)
Calcium Bromide
d)
Carbon and Bromine
4.
Which is the correct lewis dot structure for calcium chloride?
a)
A
b)
B
c)
C
5.

What element does the following configuration represent? 1s²2s²2p⁶3s²3p⁴

a)

Sulfur (S)

b)

Silicon (Si)

c)

Selenium (Se)

d)

Chromium (Cr)

6.

What is the correct Lewis electron-dot structure for the compound magnesium fluoride, (MgF₂)?

a)
b)
c)
d)
7.

Which scientist's model is shown?

a)

Rutherford

b)

Bohr

c)

Dalton

d)

Schrodinger

8.

Who developed this model of the atom?

a)

Plum Pudding Model

b)

J.J. Thomson

c)

Proto-Electron Model

d)

Ernest Rutherford

9.

Which model was created after the discovery of the nucleus?

a)

Dalton's

b)

Rutherford's

c)

Quantum Mechanical

d)

Plum Pudding

10.
Rutherford concluded that the atom
a)
has a nucleus with a positive charge
b)
has a nucleus with a negative charge 
c)
is a small mass with negative and positive charges
d)
contains a nucleus without a charge
11.

What is the correct name for the compound NO2?

a)

nitrogen oxide

b)

mononitrogen dioxide

c)

nitrogen oxygen

d)

nitrogen dioxide

12.
In covalent bonds, what do you use to indicate the number of atoms in each element?
a)
Suffixes
b)
Chemical formulas
c)
Scientific equations
d)
Prefixes
13.
What are three significant rules when naming ionic compounds?
a)
The anion always goes first, before the cation.  You can use any name for the monatomic cation, and a monatomic anion receives its name by taking the first part of a name and adding -ide to the end.
b)
The cation always goes before the anion when naming ionic compounds, the monatmoic cation obtains the same, common name as its parent name, and a monatomic cation receives its name by taking the last part of a name and adding -ied at the end.
c)
The cation always gets put first in the name, before the anion. Monatomic cations receive its name from its parents, and a monatomic anion acquires its name by taking the first part of a name and adding -ide to the end.
14.

Which electron configuration belongs to a Chloride (Cl-) ion?

a)

1s2 2s2 2p6 3s2 3p5

b)

1s2 2s2 2p6 3s2 3p6

c)

1s2 2s2 2p6 3s2 3p7

d)

1s2 2s2 2p6 3p7

15.

What is the electron configuration of Ca+2?

a)

1s2 2s2 2p6 3s2 3p6 4s2

b)

1s2 2s2 2p6 3s2 3p6

c)

1s2 2s2 2p6 3s2 3p6 4s4

d)

1s2 2s2 2p6 3s2 3p6 4s2 4p2

16.

The element Ca will form a cation. What would be the noble gas that this cation would have the same electron configuration as ?

a)

Ne

b)

Ar

c)

He

d)

Xe

17.
The electron configuration of an atom is 1s22s22p6.  The number of valence electrons in the atom is 
a)
3
b)
6
c)
8
d)
10
18.

Select the element with the largest atomic radius

a)

Cesium

b)

Lithium

c)

Hydrogen

d)

Potassium

19.
As you move down the periodic table atoms get bigger.  This is because ____________.
a)
The atoms have more mass.
b)
The atoms have more protons.
c)
The atoms have more energy levels
d)
The atoms have more nuetrons
20.

Metals

a)

Anything that has volume and mass

b)

Elements that are typically solid, shiny, malleable, and good conductors of heat and electricity; includes most elements

c)

A substance whose electric conductivity falls between that of a conductor and an insulator; the foundation of modern electronics

d)

A characteristic that can be observed or measured without changing the substance

21.
Iron is a good conductor, malleable and magnetic. What type of element is Iron? 
a)
Metal
b)
Nonmetal
c)
Metalloid
d)
Pretty
22.

A covalent bond in which electrons are not shared equally is called a _____.

a)

bipolar covalent bond

b)

polar covalent bond

c)

diatomic ionic bond

d)

positive covalent bond

23.

When two fluorine atoms share a pair of electrons, the bond that forms is a

a)

polar covalent bond

b)

nonpolar covalent bond

24.
Covalent bonds are between...
a)
Metal and Non-metal
b)
Non-metal and Non-metal
c)
Metal and Metal
25.
How are covalent bonds formed?
a)
Sharing of electrons
b)
Transfer of electrons
26.
How are ionic bonds formed?
a)
Transfer of electrons
b)
Sharing of electrons
27.

Diatomic molecules like Cl2Cl_{2_{ }} are what kind of covalent bond?

a)

Polar

b)

Non Polar

28.

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

a)

Evenly

b)

Unevenly

c)

Electrons are not shared

29.

Partial charges are present in which type of bond(s)?

a)

Ionic

b)

Nonpolar Covalent

c)

Polar Covalent

d)

Both Polar Covalent and Ionic

e)

All covalent

30.

How are emission spectra formed?

a)

When photons are absorbed and electrons return to a lower energy level

b)

When photons are absorbed and electrons are promoted to a higher energy level

c)

When photons are emitted and electrons are promoted to a higher energy level

d)

When photons are emitted and electrons return to a lower energy level

31.

Light of a specific frequency is emitted when...

a)

an electron absorbs energy

b)

an electron moves down an energy level

c)

when an electron gets excited

d)

all of these are true

32.
Emission of light from an atom occurs when an electron
a)
drops from a higher to a lower energy level.
b)
   jumps from a lower to a higher energy level.   
c)
   moves within its atomic orbital.
d)
falls into the nucleus.
33.
Emission of light from an atom occurs when an electron
a)
drops from a higher to a lower energy level.
b)
   jumps from a lower to a higher energy level.   
c)
   moves within its atomic orbital.
d)
falls into the nucleus.
34.

Choose the properties that describe ionic compounds. (Hint there are 3 three correct answers)

a)

high melting point

b)

low melting point

c)

solids

d)

dissolve in water

e)

bond between 2 nonmetals

35.

In order for two elements to be isotopes, what has to be the SAME?

a)

Protons

b)

Electrons

c)

Neutrons

d)

Mass

36.

Isotopes of the same element have the same number of ________ but a different number of _______.

a)

protons, neutrons

b)

neutrons, protons

c)

protons, electrons

d)

electrons, neutrons

37.

Chromium has four naturally occurring isotopes (chromium-50, chromium-52, chromium-53, and chromium-54). Which isotope would you predict is the most abundant? (Hint: You will need to look at the average atomic mass of chromium on the periodic table to make your decision.)

a)

chromium-50

b)

chromium-52

c)

chromium-53

d)

chromium-54

38.

How many neutrons are in an isotope of uranium with a mass number of 238 and an atomic number of 92?

a)

92

b)

146

c)

238

d)

346

39.

Calculate the average atomic mass of silver.

a)

106.38649amu

b)

111.91896amu

c)

107.8677amu

d)

121

40.

Chlorine has two naturally occurring isotopes, Cl-35 and Cl-37, The atomic mass of chlorine is 35.45. Which of these two isotopes of chlorine is more abundant?

a)

Cl-35

b)

Cl-37

c)

Cannot be determined from the information provided.

41.

An element has two isotopes, one with a mass of 39 and one with a mass of 41. If the average mass is 40.6, which isotope is more abundant?

a)

mass of 39

b)

mass of 41

c)

they are both equally abundant

42.

Which of these determines the identity of an atom?

a)

proton

b)

neutron

c)

valence electron

d)

protons and neutrons

43.

How many valence electrons makes most atoms stable (nonreactive)?

a)

2

b)

8

c)

1

d)

4

44.

Which group is the most stable?

a)

17

b)

1

c)

2

d)

18

45.
What determines the reactivity of an element?
a)
Size of its nucleus
b)
Number of total electrons
c)
Number of valence electrons
d)
Number of shells
46.

Based on the periodic table of elements, which of these elements has properties most similar to calcium (Ca)?

a)

carbon (C)

b)

barium (Ba)

c)

sodium (Na)

d)

manganese (Mn)

47.
Which of the following is the most reactive group of non-metals? 
a)
Alkali
b)
Alkali Earth
c)
Halogen
d)
Noble Gas
48.
Which statement about the reactivity of elements in a family is true?
a)
Reactivity increases as you go down through the family
b)
Reactivity increases as you go to the left in a family
c)
Reactivity increases as you go to the right in a family
d)
Reactivity increases as you go up through the family
49.

An element that has some characteristics of both metals and nonmetals.

a)

nonmetal

b)

metalloid

c)

alkali metal

d)

alkaline earth metal

50.
Which element is a metalloid?
a)
Titanium
b)
Selenium
c)
Potassium
d)
Polonium
51.
The table shows the properties of three classifications of elements. What are the best headings for columns A, B, and C?
a)
(A) Metals, (B) Non-metals, and (C) Metalloids
b)
(A) Non-metals, (B) Metalloids, and (C) Metals
c)
(A) Metals, (B) Metalloids, and (C) Non-metals
d)
(A) Non-metals, (B) Metals, and (C) Metalloids
52.
Silicon is a semiconductor and has properties of both metals and nonmetals. What type of element is Silicon? 
a)
Metal
b)
Nonmetal
c)
Metalloid
d)
Pretty
53.

Define nuclear fusion.

a)

Nuclear fusion – combining lighter atoms to make heavier ones – is what makes it possible.

b)

Nuclear fusion – splitting lighter atoms to make heavier ones – is what makes it possible.

c)

Nuclear fusion – combining heavier atoms to make lighter ones – is what makes it possible.

d)

Nuclear fusion – splitting heavier atoms to make lighter ones – is what makes it possible.

54.

Takes two small nuclei and combines them into a larger nucleus

a)

Fission

b)

Fusion

55.

Solve the nuclear fusion reaction 105B+126C→

a)

3211Na

b)

2211Na

c)

2211Ca

d)

3211Ge

56.

What are the products of a nuclear fusion reaction?

a)

A new element

b)

A new element plus mass

c)

A new larger element plus energy

d)

A new smaller element plus energy

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