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Matter, Atomic Structure, Chemical Bonding
Test Description: CYB 17-18 Chem Test 1
Instructions: Answer all questions to get your test result.
1) Atoms of the noble gases are generally inert because —
A
their outer electron levels are filled
B
they are too large to react
C
they are neutral atoms
D
they are not charged
2) What are shared in covalent bonds?
A
Protons
B
Cations
C
Anions
D
Electrons
3) Chlorine has atomic number 17 and mass number 35. It has
A
18 protons, 18 electrons, and 17 neutrons.
B
17 protons, 17 electrons, and 52 neutrons.
C
35 protons, 35 electrons, and 17 neutrons.
D
17 protons, 17 electrons, and 18 neutrons.
4) The chemical symbol for iron is _____.
A
Fe
B
FE
C
ir
D
fe
5) What makes the outer shell electrons important is that they
A
will always seek out atoms that have the same number of outer shell electrons
B
determine the chemical reactivity of the atom.
C
are not really important so they can be lost easily.
D
tell you what element you're dealing with if you only know how many electrons are in the outer shell
6) All of the noble gases have this fact in common:
A
They are all very common and can be found easily in nature
B
They will react chemically with other elements quite easily
C
They are all radioactive
D
Their outer shells are full of electrons
7) Which of these elements have atoms that do not have two electrons in their outer shells?
A
magnesium
B
lithium
C
Calcium
D
berylium
8) When an atom manages to get its outer energy level filled with electrons the atom becomes
A
new elemen
B
unstable
C
non-reactive
D
More reactive
9) Ionic bonds form when electrons are-
A
ionized
B
shared
C
transferred
D
magnetized
10) Covalent bonds form when electrons are
A
transferred
B
magnetized
C
shared
D
ionized
11) In an ionic bond, nonmetals are most likely to
A
lose electrons
B
gain electrons
C
cancel electrons
D
share electrons
12) Atoms join with other atoms by bonding with them in order to become as chemically _______ as possible.
A
unstable
B
electrified
C
stable
D
inert
13) When forming a chemical bond only the ________ electrons participate in the bonding process.
A
inner shell
B
ionic or covalent
C
outer shell
D
ionized
14) The noble gases rarely participate in chemical bonding because
A
their valence electron shells are full
B
they have an atomic structure similar to hydrogen
C
they are gases and gases are less volatile
D
sharing electrons would not involve enough energy
15) When atoms bond covalently with other atoms to form new substances the atoms ___________ electrons.
A
lose and gain
B
share and transfer
C
transfer
D
share
16) When a covalent bond forms between two atoms how many atoms have a full outer shell of electrons?
A
zero
B
one
C
two
D
it depends on what the atoms are
17) What makes the outer shell electrons important is that they
A
tell you what element you're dealing with if you only know how many electrons are in the outer shell
B
will always seek out atoms that have the same number of outer shell electrons
C
are not really important so they can be lost easily.
D
determine the chemical reactivity of the atom.
18) Which of these elements have atoms that do not have two electrons in their outer shells?
A
helium
B
magnesium
C
lithium
D
calcium
19) When an atom manages to get its outer energy level filled with electrons the atom becomes
A
non-reactive
B
a new element
C
very unstable
D
more reactive
20) Ionic bonds form when electrons are-
A
shared
B
transferred
C
magnetized
D
ionized
*select an answer for all questions
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