Section 1

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mass number

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Last updated

6 years ago

Date created

Mar 1, 2020

Cards (13)

Section 1

(13 cards)

mass number

Front

the sum of the protons and neutrons in the nucleus which is the rounded atomic mass

Back

atomic mass unit (amu)

Front

the unit given to the mass of a proton or a neutron

Back

ion

Front

an atom that is positively or negatively charged

Back

anion

Front

an atom that has taken electrons and negatively charged

Back

neutron

Front

subatomic particle in the nucleus of an atom that has a neutral charge and a mass of 1 amu

Back

proton

Front

subatomic particle in the nucleus of the atom with a positive charge and a mass of 1 amu

Back

Isotopes

Front

atoms of the same element that have a different number of neutrons

Back

cation

Front

an atom that has given away electrons and positively charged

Back

atomic mass

Front

the average mass of all the naturally occurring isotopes of an element and is usually a decimal number

Back

electron cloud

Front

the area of an atom where electrons are found

Back

nucleus

Front

center of the atom containing the protons and neutron and makes up 99.99% of the atoms mass

Back

electron

Front

a subatomic particle found in the electron cloud of an atom and has a small amount of mass. We assume it's mass as 0 amu

Back

atomic number

Front

the number of protons in the nucleus

Back