8.5B Protons and Electrons Vocabulary

the number of protons in the nucleus of one atom of an element

• Electron

• Atomic Number

• Atomic Mass

• Valence Electron

Answer explanation

The atomic number is the number at the top. It is ALWAYS the same as the number of protons and the number of electrons of an element.

Tags

NGSS.MS-PS1-1

a negatively charged subatomic particle located in the electron cloud; involved in the formation of chemical bonds​ ​ _____

Tags

NGSS.MS-PS1-1

atoms that acquire an overall net charge as a result of the loss or gain of electrons

• atoms

• ions

• protons

• neutrons

Tags

NGSS.MS-PS2-3

the sum of negative and positive charges

• net charge

• neutral

• positive

• negative

a positively charged subatomic particle located in the nucleus of an atom; contributes to the mass of the atom; the reason why the nucleus is ALWAYS positive

• neutron

• proton

• ion

• electron

Tags

NGSS.MS-PS1-1

the ability of a chemical substance to undergo a chemical reaction; significantly influenced by the valence electrons of the reacting substances

• chemical formula

• ion

• chemical equation

• reactivity

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

the electrons in the outermost energy level of an atom that influence how an element will react with other substances

• valence electrons

• protons

• ion

• neutrons

Tags

NGSS.MS-PS1-1