CHE-Chapter 4 Test Review

A particle with two protons and two neutrons, with a 2⁺ charge; is equivalent to a helium-4 nucleus, and is emitted during radioactive decay.

• alpha particle
• alpha radiation
• beta particle
• beta radiation

Tags

NGSS.HS-PS1-8

Radiation that is made up of alpha particles; is deflected toward a negatively charged plate when radiation from a radioactive source is directed between two electrically charged plates

• alpha particle
• alpha radiation
• beta particle
• beta radiation

Tags

NGSS.HS-PS1-8

The smallest particle of an element that retains all the properties of that element; is electrical neutral, spherically shaped and composed of electrons, protons, and neutrons.

• proton
• electron
• atom
• isotope

The weighted average mass of the isotopes of that element.

• atomic number
• atomic mass unit
• atomic mass
• mass number

Tags

NGSS.HS-PS1-8

One-twelfth the mass of a carbon-12 atom.

• atomic number
• atomic mass
• mass number
• atomic mass unit

The number of protons in an atom.

• isotopes
• mass number
• atomic number
• atomic mass unit

A high-speed electron with a 1^- charge that is emitted during radioactive decay.

• beta particle
• beta radiation
• alpha particle
• alpha radiation

Tags

NGSS.HS-PS1-8

Radiation that is made up of beta particles; is deflected toward a positively charged plate when radiation from a radioactive source is directed between two electrically charged plates.

• beta particle
• beta radiation
• alpha radiation
• gamma rays

Tags

NGSS.HS-PS1-8

Radiation that originates from the cathode and travels to the anode of a cathode-ray tube.

• beta radiation
• gamma ray
• alpha radiation
• cathode ray

A negatively charged, fast-moving particle with an extremely small mass that is found in all forms of matter and moves through the empty space surrounding an atom's nucleus.

• nucleus
• proton
• neutron
• electron