Matter, Atomic Structure, Chemical Bonding Question Preview (ID: 38383)
CYB 17-18 Chem Test 1.
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When atoms bond covalently with other atoms to form new substances the atoms ___________ electrons.
a) share
b) lose and gain
c) transfer
d) share and transfer
The noble gases rarely participate in chemical bonding because
a) their valence electron shells are full
b) they are gases and gases are less volatile
c) sharing electrons would not involve enough energy
d) they have an atomic structure similar to hydrogen
Atoms join with other atoms by bonding with them in order to become as chemically _______ as possible.
a) stable
b) electrified
c) inert
d) unstable
When forming a chemical bond only the ________ electrons participate in the bonding process.
a) outer shell
b) inner shell
c) ionic or covalent
d) ionized
Ionic bonds form when electrons are-
a) transferred
b) magnetized
c) ionized
d) shared
Covalent bonds form when electrons are
a) shared
b) magnetized
c) transferred
d) ionized
In an ionic bond, nonmetals are most likely to
a) gain electrons
b) lose electrons
c) cancel electrons
d) share electrons
Which of these elements have atoms that do not have two electrons in their outer shells?
a) lithium
b) magnesium
c) berylium
d) Calcium
When an atom manages to get its outer energy level filled with electrons the atom becomes
a) non-reactive
b) More reactive
c) unstable
d) new elemen
When a covalent bond forms between two atoms how many atoms have a full outer shell of electrons?
a) two
b) it depends on what the atoms are
c) one
d) zero
All of the noble gases have this fact in common:
a) Their outer shells are full of electrons
b) They are all very common and can be found easily in nature
c) They will react chemically with other elements quite easily
d) They are all radioactive
The chemical symbol for iron is _____.
a) Fe
b) FE
c) fe
d) ir
What makes the outer shell electrons important is that they
a) determine the chemical reactivity of the atom.
b) tell you what element you're dealing with if you only know how many electrons are in the outer shell
c) will always seek out atoms that have the same number of outer shell electrons
d) are not really important so they can be lost easily.
Chlorine has atomic number 17 and mass number 35. It has
a) 17 protons, 17 electrons, and 18 neutrons.
b) 35 protons, 35 electrons, and 17 neutrons.
c) 17 protons, 17 electrons, and 52 neutrons.
d) 18 protons, 18 electrons, and 17 neutrons.
What are shared in covalent bonds?
a) Electrons
b) Anions
c) Protons
d) Cations
Atoms of the noble gases are generally inert because —
a) their outer electron levels are filled
b) they are neutral atoms
c) they are not charged
d) they are too large to react
What makes the outer shell electrons important is that they
a) determine the chemical reactivity of the atom.
b) are not really important so they can be lost easily.
c) tell you what element you're dealing with if you only know how many electrons are in the outer shell
d) will always seek out atoms that have the same number of outer shell electrons
Which of these elements have atoms that do not have two electrons in their outer shells?
a) lithium
b) magnesium
c) calcium
d) helium
When an atom manages to get its outer energy level filled with electrons the atom becomes
a) non-reactive
b) more reactive
c) a new element
d) very unstable
Ionic bonds form when electrons are-
a) transferred
b) ionized
c) magnetized
d) shared
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