Atomic Theory And The Periodic Table Worksheet With Answers Page 3
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1715. When forming ions, elements on the left side of the periodic table tend to behave in which of the
following ways?
a) lose protons
b) gain protons
c) lose electrons
d) gain electrons
-2
16. Which of the following statements about SO
and SO
are true?
3
3
a) I and II only
b) I, II, and III only
c) I, II, and IV only
d) I, II, III, and IV
17. Which of the following explains the difference between the atoms of Cobalt-60 and Cobalt-58?
a) Cobalt-60 has 2 fewer protons.
b) Cobalt-60 has 2 more neutrons.
c) Cobalt-60 has 2 more electrons.
d) Cobalt-58 and 60 have the same number of neutrons.
18. Complete the following table. (2 marks)
isotope
symbol
Mass number
Atomic
Number Of
Number Of
Number
Protons
Neutrons
Nickel-59
59
28
28
31
19. Complete the following table (6 marks)
Symbol
Charge
Atom Of Ion
Number Of
Number of
Protons
Electrons
F
No Charge
Atom
9
9
+3
Al
+
ion
13
10
-1
I
-
ion
53
54
Forming Compounds – Ionic compounds (linked by ionic bonds – electrons given and received)
20. Which of the following are responsible for chemical bonding?
a) electrons
b) neutrons
c) nuclei
d) protons
21. What is the formula for calcium hydroxide?
a) CaOH
b) CaOH
2
c) Ca (OH)
2
d) Ca
OH
2
–1
22. OH
is an example of an ionic compound.
a) True
b) False
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