Atoms elements and periodic table - Review part 1

The weighted average mass of an element.

• mass number

• atomic number

• isotope

• element

A sample of matter that has the same composition and properties throughout.

• substance

• atom

• element

• isotope

States that matter is neither created nor destroyed, only changed in form.

• Law of conservation of matter

• Law of energy

• Law of gravity

Tags

NGSS.MS-PS1-5

Negatively charged subatomic particle

• proton

• neutron

• electron

Tags

NGSS.MS-PS2-3

Positively charged particle in the nucleus of an atom.

• proton

• neutron

• electron

Tags

NGSS.HS-PS1-8

Uncharged particle in the nucleus of an atom.

• proton

• neutron

• electron

Tags

NGSS.HS-PS1-8

Positively cahrged central part of the atom.

• nucleus

• electron cloud

• orbit

• energy level

Tags

NGSS.MS-PS1-1

Elements that generally have a shiny or metalllic luster

• metals

• nonmetals

• metalloids

• noble gases

Elements that have characteristics of both metals and nonmetals.

• metals

• nonmetals

• metalloids

• noble gases

Elements that are usually dull in appearance and poor conductors of heat and electricity .

• metals

• nonmetals

• metalloids

• noble gases