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CHEM 1305 Exam II

Total questions: 47

Worksheet time: 40mins

Name
Class
Date
1.

How many protons, electrons, and neutrons are in Se2-

a)

34 protons, 34 electrons, 34 neutrons

b)

36 protons, 36 electrons, 79 neutrons

c)

34 protons, 36 electrons, 45 neutrons

d)

34 protons, 36 electrons, 34 neutrons

2.
A neutral atom of Carbon-13 has ________ electrons and _________ neutrons
a)
13, 13
b)
6, 7
c)
7, 7
d)
6, 6
3.
How many protons are in this element?
a)
79
b)
196
c)
117
d)
Cannot be determined
4.

An element has two naturally occurring isotopes. One is 10.013 amu and is 19.9% abundant. The other is 11.01 amu and is 80.1% abundant. What is the average atomic mass? What element is it?

a)

9.0, Beryllium

b)

12.01, Carbon

c)

6.94, Lithium

d)

10.8, Boron

5.

What atom matches this electron configuration?

1s22s22p63s23p64s23d10

a)

Zinc

b)

Copper

c)

Nickel

d)

Germanium

6.

Which electron configuration matches an oxygen atom?

a)

1s22s22p63s2, 3p64s23d104p5

b)

1s22s22p4

c)

1s22s22p6

d)

1s22s22p63s23p64s23d1

7.

What is the electron configuration of Iodine?

a)

[Kr]5s24d105p6

b)

[Kr]5s24d106p6

c)

[Kr]5s25d106p6

d)

None of the above

8.

What electron configuration matches a barium ion?

a)

1s22s22p63s23p64s23d104p65s24d105p66s2

b)

1s22s22p63s23p64s23d104p65s24d105p6

c)

1s22s22p63s23p64s23d104p65s24d105p66s24f2

d)

1s22s22p63s23p64s23d104p65s24d105p46s2

9.

What is the electron configuration for the Sulfur ion?

a)

[Ne] 3s23p6

b)

[Ne] 3s23p2

c)

[Ne] 3s23p4

d)

[Na] 3s23p4

10.

How many protons, electrons and neutrons are in 37Cl?

a)

37 protons, 37 electrons, 37 neutrons

b)

17 protons, 17 electrons, 35.45 neutrons

c)

17 protons, 17 electrons, 20 neutrons

d)

17 protons, 17 electrons, 37 neutrons

11.

How many protons, electrons, and neutrons does Fe3+ have?

a)

26 protons, 26 electrons, 26 neutrons

b)

26 protons, 26 electrons, 56 neutrons

c)

26 protons, 29 electrons, 30 neutrons

d)

26 protons, 23 electrons, 30 neutrons

12.

Which of the following is a nonmetal?

a)

iron

b)

copper

c)

bromine

d)

gold

13.

Name the halogen in period 5.

a)

radon

b)

iodine

c)

chromium

d)

oxygen

14.

Name an alkaline metal in period 2.

a)

beryllium

b)

boron

c)

lithium

d)

fluorine

15.

Which of the following elements from Period 4 will have a larger radius than Zinc?

a)

Bromine

b)

Gallium

c)

Arsenic

d)

Calcium

16.

Which one has the largest radius?

a)
Lithium (Li, atomic #3)
b)
Boron (B, atomic #5)
c)
Neon (Ne, atomic #10)
d)
Nitrogen (N, atomic #7)
17.

Which pair is isoelectronic?

a)

Na+ and Si4+

b)

S2- and O2-

c)

Mg2+ and Cl-

18.
Which of the following will have a higher ionization energy than arsenic (As)?
a)
Gallium (Ga)
b)
Neon (Ne)
c)
Antimony (Sb)
d)
Germanium (Ge)
19.

Arrange the following from lowest to highest ionization energy: Si, F, In, N

a)

Si, F, In, N

b)

N, F, Si, In

c)

F, In, N, Si

d)

In, Si, N, F

20.

Which of the following has the most metallic character?

a)

Ba

b)

H

c)

Mg

d)

Og

21.

How many valence electrons are in P?

a)

5

b)

3

c)

15

d)

2

22.

What is the charge on barium when it becomes an ion?

a)

1+

b)

2+

c)

2-

d)

1-

23.

LiBr is called

a)

lithium bromine

b)

lithium (I) bromine

c)

lithium bromide

d)

lithuim (I) bromide

24.

The name of FeCl3 is

a)

iron chloride

b)

iron (III) chloride

c)

iron (I) chloride

d)

iron trichloride

25.

Name the ionic compound SnSe2

a)

Tin diselenide

b)

Tin (IV) Selenide

c)

Tin selenide

d)

Tin (II) triselenide

26.

Name the following ionic compound: BeCl2

a)

beryllium chlorine

b)

beryllium II chloride

c)

beryllium chloride

d)

beryllium dichloride

27.

Name the following ionic compound: Cs2S

a)

cesium sulfide

b)

cesium sulfate

c)

cesium II sulfate

d)

cesium II sulfide

28.

What is the name of the compound Na2(SO4)?

a)

Sodium sulfate

b)

Sodium sulfide

c)

Sodium sulfite

d)

Sodium sulfuroxide

29.

What is the name of the compound Sc(OH)3?

a)

Scandium (III) hydroxide

b)

Scandium (I) hydroxide

c)

Scandium (II) hydroxide

d)

Scandium hydroxide

30.

The name of the compound Ca3(PO4)2

a)

calcium phosphate

b)

tricalcium diphosphate

c)

calcium phosphorus oxide

d)

calcium phosphide

31.
AgF
a)
silver fluoride
b)
silver fluorine
c)
monosilver monofluoride
d)
silver monofluorine
32.
How do the following two elements bond together?
Al3+  O2-         
a)
AlO
b)
Al2O3
c)
Al3O6
d)
Al3O2
33.
The proper formula for magnesium hydroxide:
a)
MgOH
b)
Mg2OH
c)
Mg(OH)2
d)

MgOH2

34.

What is the chemical formula of lithium nitrate?

a)

Li3NOLi_3NO  

b)

LiN

c)

Li3NLi_3N  

d)

LiNO3LiNO_3  

35.
The chemical formula of lead (IV) nitrate is
a)
PbN₄
b)
PbNO₃₄
c)
Pb(NO₃)₄
d)
Pb₃NO₄
36.
What is the formula for copper(I) sulfate?
a)
CuSO3
b)
CuSO4
c)
Cu2SO3
d)
Cu2SO4
37.

What is the chemical formula for phosphorus trichloride?

a)
KCl3
b)
PCl3
c)
K3Cl
d)
P3Cl
38.

What is the chemical formula for silicon dioxide?

a)
SO2
b)
NaO2
c)
SiO2
d)
SiO
39.

What is the chemical formula for diphosphorus pentoxide?

a)
P2O5
b)
PO5
c)
P5O2
d)
P2O6
40.

What is the chemical formula for SiCl4?

a)
silicon tetrachloride
b)
silicon quadchloride
c)
monosilicon tetrachloride
d)
silicon chloride
41.

What is the name of HNO2?What\ is\ the\ name\ of\ HNO_2?  

a)

nitric acid

b)

nitrous acid

c)

hydronitrate acid

d)

nitrite acid

42.

Write the formula for hydroiodic acid?

a)

HIO3HIO_3  

b)

HI

c)

HIO2HIO_2  

d)

HIO

43.

An ionic bond is between

a)

a metal and nonmetal

b)

2 metals

c)

2 nonmetals

44.

A covalent bond is one between

a)

2 metals

b)

2 nonmetals

c)

a metal and a nonmetal

45.

What is the correct Lewis Dot Diagram for the selenium atom?

a)
b)
c)
d)
46.

When an atom loses a valence electron, it becomes a _____________ ion.

a)

positive

b)

negative

c)

neutral

d)

polyatomic

47.

Which of the following is the correct Lewis Dot Diagram for an atom in Group 17?

a)
b)
c)
d)