PS Quiz 3B Question Preview (ID: 58291)
E.
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Atoms are made of three basic particles _________.
a) neutrons, protons, electrons
b) protons, electrons, nucleons
c) electrons, quarks, protons
d) protons, electrons, negatrons
Electrons (indicated by the symbol e– ) are the _____ of the main subatomic particles.
a) most massive
b) smallest
c) slowest
d) heaviest
Each electron carries a single ________ electrical charge.
a) positive
b) neutral
c) negative
d) magnetic
Electrons are primarily responsible for all the ______ properties of atoms, including how bonds form between atoms.
a) physical
b) extra
c) corporate
d) chemical
A _______ is a subatomic particle located in the atom’s nucleus.
a) proton
b) atom
c) electron
d) compound
Protons carry a ______ positive electrical charge.
a) double
b) single
c) triple
d) half
The ______, carries no electrical charge.
a) electron
b) nucleus
c) neutron
d) proton
A neutron has slightly ______ mass than a proton.
a) less
b) lower
c) smaller
d) more
______ gold atom has seventy nine protons.
a) Every
b) No
c) Most
d) The Macro
The unique number of protons in the atoms of each element is that element’s atomic _______ and identifies that element.
a) mass
b) number
c) weight
d) charge
Atomic numbers are always _____ numbers because atoms don’t contain any partial protons.
a) negative
b) neutral
c) whole
d) charged
The atomic number also tells us the number of electrons surrounding the nucleus in a ______ atom, an atom with balanced electric charges.
a) negative
b) positive
c) ionic
d) neutral
A neutral carbon atom has six protons and _____ electrons.
a) six
b) eight
c) seven
d) twelve
Atoms of the same element with differing numbers of ______ are called isotopes.
a) protons
b) neutrons
c) electrons
d) charges
Isotopes of the same element can sometimes have quite different physical _______.
a) reactions
b) measurements
c) properties
d) designs
Because of their unequal numbers of protons and electrons, charged atoms are known as ______.
a) charges
b) atomos
c) electric
d) ions
Ions that have more electrons than protons have an excess of negative charge and are called _______.
a) anions
b) cations
c) any ion
d) net charges
Ions that have more protons than electrons have an excess of positive charge and are known as ______.
a) anions
b) cations
c) any ions
d) charged atoms
Ions play a critical role in the way that many chemical ______ form.
a) signs
b) charges
c) compounds
d) molecules
Protons and ______ have slightly different masses, but the difference is very small.
a) compounds
b) electrons
c) nucleons
d) neutrons
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