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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
lose one electron
B
gain one electron
C
lose two electrons
D
gain two electrons
2) If an ion has 16 protons and 18 electrons it will be _____________.
A
none of these
B
2-
C
2+
D
24
3) If an ion has 20 protons and 15 electrons it will be ___________.
A
5+
B
5-
C
35
D
none of these
4) Electrons found in the outer shell (or energy level) of an atom are called _____________ electrons.
A
valence
B
ionized
C
periodic
D
relativisitc
5) The first shell of any atom can hold maximum of ___________electrons.
A
eight
B
one
C
four
D
two
6) Which of these elements do not have atoms whose out shells are full of electrons?
A
neon
B
argon
C
radium
D
krypton
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
positive, uncharged
B
negative, positive
C
negative, 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
N
B
Ne
C
O
D
S
10) Atoms gain the same electron configuration as noble gases by
A
losing protons
B
gaining electrons
C
losing electrons
D
losing or gaining electrons
*select an answer for all questions
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