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Chemical Bonding
Test Description: Answer the review questions.
Instructions: Answer all questions to get your test result.
1) When a potassium atom reacts with a bromine atom the potassium atom will
A
gain one electron
B
lose two electrons
C
lose one electron
D
gain two electrons
2) If an ion has 16 protons and 18 electrons it will be _____________.
A
none of these
B
2-
C
24
D
2+
3) If an ion has 20 protons and 15 electrons it will be ___________.
A
5-
B
35
C
none of these
D
5+
4) Electrons found in the outer shell (or energy level) of an atom are called _____________ electrons.
A
ionized
B
periodic
C
valence
D
relativisitc
5) The first shell of any atom can hold maximum of ___________electrons.
A
eight
B
two
C
four
D
one
6) Which of these elements do not have atoms whose out shells are full of electrons?
A
krypton
B
radium
C
argon
D
neon
7) If a chlorine atom were to gain one more electron it would be similar to, but not exactly the same as -
A
fluorine
B
sulfur
C
bromine
D
argon
8) An element in group IIA would form a __________ ion while an element in group VIIA would form a(n) __________ ion.
A
negative, uncharged
B
negative, positive
C
positive, uncharged
D
positive, negative
9) Which of these elements has atoms that would have the most difficulty forming a covalent bond with oxygen (O)?
A
Ne
B
O
C
N
D
S
10) Atoms gain the same electron configuration as noble gases by
A
gaining electrons
B
losing protons
C
losing electrons
D
losing or gaining electrons
*select an answer for all questions
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