Atoms Vocab Flashcard

Front

Fundamental property of matter, can be positive or negative.

Back

Electric charge

Front

Smallest unit of electric charge in matter, represented by 'e'.

Back

Elementary charge

Front

A particle with charge (-e) found in atoms but outside the nucleus.

Back

Electron

Front

Core of an atom with most mass and positive charge.

Back

Nucleus

Front

Particle in the nucleus with a positive charge equal to the electron.

Back

Proton

Front

Particle in nucleus, mass similar to proton, zero charge.

Back

Neutron

Front

Number of protons in an atom's nucleus.

Back

Atomic number

Front

Atoms of the same element with different neutron counts.

Back

Isotopes

Front

Protons + Neutrons in nucleus.

Back

Mass number

Front

Characteristic colors of light emitted or absorbed by an element.

Back

Spectrum