8.5A Atoms Vocabulary Review/Quiz

A conceptual model of the atom in which a small positively, charged nucleus is
surrounded by planetary electrons

• conservation of mas

• law of constant proportions

• law of multiple proportions

• nuclear model of the atom

Tags

NGSS.HS-PS1-8

Particles that are smaller than the atom

• atomic mass

• subatomic particles

• electron cloud

• atom

a symbolic representation of a chemical reaction in which both sides of the equation contain equal numbers of atoms of each element

• chemical reaction

• synthesis reaction

• chemical formula

• balanced chemical equation

Tags

NGSS.MS-PS1-5

a neutrally charged subatomic particle located in the nucleus of an atom that contributes to the mass of an atom

• neutron

• electron

• nucleus

• proton

The mass of an atom, approximately equal to the number of protons and neutrons in the atom

• subatomic particles

• atomic mass

• chemical formula

• electron cloud

a shorthand notation that uses chemical symbols and numbers as subscripts to represent the type and number of atoms that are present in the smallest unit of the substance

• chemical formula

• chemical symbol

• chemical equation

• chemical bond

a negatively charged subatomic particle located in the electron cloud; involved in the formation of chemical bonds; contributes to the volume of an atom

• neutron

• atom

• electron

• proton

the tiny, very dense, positively charged region in the center of an atom; made up of protons and neutrons

• proton

• nucleus

• electron

• neutron

the smallest particle of an element; made of electrons, protons, and neutrons

• atom

• proton

• neutron

• electron

the area surrounding the nucleus of an atom where the electrons are found

• proton

• electron cloud

• electrical charge

• nucleus