Chemistry Review Ch. 9-11 Question Preview (ID: 46940)
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What is shared in a metallic bond ?
a) neutrons
b) pooled valence electrons
c) protons
d) negatively charged ions
What would make bromine, atomic number 17 , stable ?
a) losing an electron
b) gaining an electron
c) losing 2 electrons
d) gaining 3 electrons
Metals are good conductors because the ______ can move from ion to ion.
a) protons
b) neutrons
c) electrons
d) valence electrons
An ion is an atom that is no longer
a) stable
b) negative
c) neutral
d) positive
The symbol for Silver is
a) Au
b) Ag
c) S
d) Si
A molecule is a group of atoms held together by
a) covalent bonding
b) ionic bonding
c) gravity
d) pressure
Water is
a) unstable
b) an ionic molecule
c) a polar molecule
d) a metalloid
Which is NOT a Noble gas ?
a) Neon
b) Krypton
c) Fluorine
d) Helium
How many valence electrons does Lithium have ?
a) 1
b) 2
c) 3
d) 4
Which of these is NOT a compound ?
a) water
b) air
c) salt
d) carbon dioxide
Which is NOT an Alkali metal ?
a) magnesium
b) sodium
c) potassium
d) lithium
Isotopes are atoms of the same element with a different number of
a) electrons
b) protons
c) neutrons
d) quarks
Which statement about the nucleus is true ?
a) it contains protons and electrons
b) it always has a positive charge
c) it has very little mass
d) it always has a negative charge
The atomic mass of an element is the average of all known ______ of that element.
a) ions
b) compounds
c) isotopes
d) radioactive forms
Which is NOT true ?
a) protons and neutrons have the same mass
b) neutrons have no electrical charge
c) different elements contain different numbers of protons
d) when a neutral atom gains an electron it becomes an isotope
Which is NOT true about the Periodic table of the Elements ?
a) they are arranged alphabetically
b) there are over 100 elements listed
c) the horizontal rows are called periods
d) the vertical rows are called columns
Which element is NOT a metalloid?
a) silicon
b) polonium
c) iron
d) boron
Where are valence electrons found ?
a) in the electron level closest to the nucleus
b) in the nucleus
c) in the outermost electron level
d)
__________ is a group of atoms held together by covalent bonding.
a) A metalloid
b) A molecule
c) An ion
d) An isotope
The atoms of a noble gas do not bond easily with other atoms because their valence electrons are
a) absent
b) moving
c) stable
d) neutral
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