Matter and It's Changes Quiz

B particles

When atoms decay by emitting a or ________ to form a new atom, the nuclei of the new atom formed may still have too much energy to be completely stable.

Absorption

________: moves electrons from a ground state to a higher energy state.

Extensive

________: depends on the amount of matter that is present= dependent on amount.

Plasma

________: high temperature and energy state wherein most atoms now have charges.

Chemical

________: any substance that has a definite composition (synonym- substance)

Intensive

________: does not depend on the amount of matter that is present= independent on amount.

Hydrogen

________ in stars (the fule) can run out, and they collapse → explosion by increasing temperature and presure, counteracting gravity.

Exothermic

________: process that gives off energy.

Emission

________: lets electrons fall back down to a lower energy state.

Electrons

________ do not affect the stability of the atom.

Matter

anything that has mass and occupies space

Solid

has a definite volume, definite shape

Liquid

has a definite volume, no definite shape

Gas

has neither a definite volume or definite shape

Plasma

high temperature and energy state wherein most atoms now have charges

Inertia

resistance to change in state of motion

Mass

measure of the quantity of matter = measure with a balance

Weight

measure of Earths gravitational attraction = measure with a scale

Extensive

depends on the amount of matter that is present = dependent on amount

Intensive

does not depend on the amount of matter that is present = independent on amount

Physical

characteristic that can be observed or measured without changing the identity of substance

Chemical

characteristic that relates to a substances ability to undergo changes that transform it into different substances

Exothermic

process that gives off energy

Endothermic

process that absorbs energy

Mixtures

a material consisting of 2 or more kinds of matter, each retaining its own characteristic properties

Alpha Decay

The loss of an a-particle (a helium nucleus)

Beta Decay

The loss of a B-particle (a high energy or fast moving electron)

Ground State

lowest energy state

Excited State

higher potential energy of an atom

Absorption

moves electrons from a ground state to a higher energy state

Emission

lets electrons fall back down to a lower energy state

Particles found in the center of the atom

Protons and neutrons