benchmark 2 practice

Front

What is the periodic table?

Back

A tabular arrangement of chemical elements, organized by their atomic number, electron configuration, and recurring chemical properties.

Front

What are the properties of metals?

Back

Metals are typically shiny, malleable, ductile, and good conductors of heat and electricity.

Front

What is a phase change?

Back

A transition of matter from one state (solid, liquid, gas) to another due to changes in temperature or pressure.

Front

What is the atomic model?

Back

A theoretical representation of the structure of an atom, including protons, neutrons, and electrons.

Front

What are protons?

Back

Positively charged particles found in the nucleus of an atom.

Front

What are neutrons?

Back

Neutral particles found in the nucleus of an atom, with no charge.

Front

What are electrons?

Back

Negatively charged particles that orbit the nucleus of an atom.

Front

What is reactivity in chemistry?

Back

Reactivity refers to how readily a substance undergoes a chemical reaction with other substances.

Front

What is the least reactive element in the periodic table?

Back

Noble gases, such as Helium (He), are the least reactive due to their full valence electron shells.

Front

What is the significance of outer electrons?

Back

Outer electrons determine an element's chemical properties and reactivity.