The Atom Flashcards

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1
Q

what is the elemental force that keeps the nucleus together?

A

strong nuclear force

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2
Q

what is the force that causes the nucleus to come apart during radioactive decay

A

weak force

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3
Q

what is the weakest force in our universe

A

gravity

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4
Q

what is the force that keeps electrons from fleeing an atom

A

electromagnetic force

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5
Q

what letters are “the staircase” written on

A

B-Si-As-Te-At

(metalloids are Si-Ge, As-Sb, Te-Po)

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6
Q

how are the number of energy shells related to the period of an element on the periodic table?

A

the period number is the number of energy shells the atom has: Period 2 has 2 shells, etc.

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7
Q

atoms containing a different number of protons than electrons are

A

IONS

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8
Q

an atom with a different number of neutrons than protons is an

A

ISOTOPE

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9
Q

the property of an ion that makes it positive or negative it its

A

CHARGE

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