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1. Atomic Structure

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Total cards: 12•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (12)

#1
Front (Question)

Atom

Back (Answer)

The smallest particle of an element that contains electrons surrounding a nucleus that contains protons and neutrons.

#2
Front (Question)

Molecule

Back (Answer)

A group of two or more atoms chemically combined to form an identifiable unit which retains the properties and composition of the substance.

#3
Front (Question)

Mass of a proton and neutron

Back (Answer)

1

#4
Front (Question)

Mass of an electron

Back (Answer)

1/1840

#5
Front (Question)

Charge of a proton

Back (Answer)

1+

#6
Front (Question)

Charge of an electron

Back (Answer)

1-

#7
Front (Question)

Charge of a neutron

Back (Answer)

0

#8
Front (Question)

Atomic number

Back (Answer)

The number of protons in the nucleus of an atom.

#9
Front (Question)

Mass number

Back (Answer)

The number of protons and neutrons in the nucleus of an atom.

#10
Front (Question)

Isotope

Back (Answer)

Atoms of the same element which have the same number of protons but a different number of neutrons.

#11
Front (Question)

Relative atomic mass

Back (Answer)

The average mass of all the isotopes of an element compared to the mass of 1/12th of a carbon-12 atom.

#12
Front (Question)

Relative Atomic Mass Formula

Back (Answer)

(mass of isotope 1 × % abundance of isotope 1) + (mass of isotope 2 × % abundance of isotope 2) / ( % abundance of isotope 1 + % abundance of isotope 2)