Unit 2 Atomic Structure Practice Test 2023

a positively charged subatomic particle

• proton

• nucleus

• atom

• electron

• neutron

Tags

NGSS.MS-PS2-3

the smallest particle of an element that retains the properties of that element

• proton

• nucleus

• atom

• electron

• neutron

Tags

NGSS.MS-PS1-1

a negatively charged subatomic particle

• proton

• nucleus

• atom

• electron

• neutron

the central part of an atom, containing protons and neutrons

• proton

• nucleus

• atom

• electron

• neutron

a subatomic particle with no charge

• proton

• nucleus

• atom

• electron

• neutron

atoms with the same number of protons, but different numbers of neutrons in the nucleus of an atom

• mass number

• atomic mass unit

• atomic number

• atomic mass

• isotope

the weighted average of the masses of the isotopes of an element

• mass number

• atomic mass unit

• atomic number

• atomic mass

• isotope

the total number of protons and neutrons in the nucleus of an atom

• mass number

• atomic mass unit

• atomic number

• atomic mass

• isotope

one-twelfth the mass of a carbon atom having six protons and six neutrons

• mass number

• atomic mass unit

• atomic number

• atomic mass

• isotope

Tags

NGSS.MS-PS1-1

the number of protons in the nucleus of an element

• mass number

• atomic mass unit

• atomic number

• atomic mass

• isotope