Knowledge
3.1
Matter and chemical Bonding Practice Test
Name:_____________
1. A) Differentiate between the following terms. (3 marks)
Atomic mass number, atomic mass, and atomic number
B) Complete the chart below: [7 marks]
# electrons # neutrons Mass number Element or ion name
Aurrous ion
Carbide ion
Atomic number
35
23
36
10
23
49
14
54
51
96
2. Given oxygen and polonium, identify which would most likely be a radio isotope and which would be a stable isotope. Provide your reasoning (2 marks)
3. Complete the chart below: [6 marks]
Name # Valence E # E lost or gained
Ion notation Noble gas to which it is isoelectronic
Titanium (iv) ion
Gained 3
S 2-
Ne

Exp 3.2
4. Given the following information, which do you expect the atomic average of two isotopes to be closer to? Explain your reasoning.
1 A = 70.03 u at 88.5%
2 A = 65.5 u at 15.5%
5. If the following were isotopes which would not be belong?
82
207 Pb,
83
207 Bi,
82
210 Pb,
82
206 Pb 2+
6. Determine the average atomic mass of element X that has three isotopes:
Isotope 1 weighs 5.234 u and has a % abundance of 29%
Isotope 2 weighs 6.304 u and has a % abundance of 45%
Isotope 3 weighs 8.099 u and has a % abundance of 26%
Inquiry
Exp 2.1 [vocabulary/definitions]
1. What does it mean when an atom is isoelectronic with another atom? [2 marks]
2. How does the Kernel relate to Lewis structures? [2 marks]
Exp 2.4,

3. Give the electron configuration and the Lewis structure for the following atoms/ions: [12 marks]
Element/Ion Electron Configuration Lewis Dot
Symbol
Cr
Si
Mg
Ag
2+
Bromide ion
Titannous ion
Communication: Exp B2.7, A1.12
Complete the table below: [21 marks]
Formula
1
2
Name Classification/substance type
Nickelous perchlorate
3
4
5
Calcium hydride
Molybdenum (IV) silicate
Bromine
6
7
8
Pentanitrogen octafluoride
Percarbonic acid
Cobaltous arsenite
Nickelic hydrogen
9
10 sulfide
Magnesium nitride
Sodium perIodate
11
12
13
Dihydrogen phosphite ion
Hydroarsenic acid
14
Trisulfur nonaphosphide plumbic ion

Complete the table below: [21 marks]
Formula Name
1
2
3
4
I
2 (s)
Fe
2
(SiOOO)
NaF
HAsO
5
2-
3
5 H
2
S
(aq)
6 Mn(C
2
O
4
)
3
 7H
2
O
7 Sn(HSO
3
)
2
8
9
N
4
O
7
RuCr
2
O
7
10 Nb
11 H
3
12 LiFO
13 BaO
14 Ti
2
PO
4+
(S
2
2
O
2
3 (aq)
)
5
Classification/Type of substance