Review Chemistry

Front

What is the electron arrangement of sulfur?

Back

2.8.6

Front

What does it mean if an atom has a 2- charge?

Back

It has gained 2 electrons.

Front

What does it mean if an atom has a 2+ charge?

Back

It has lost 2 electrons.

Front

What is the atomic number of barium?

Back

56

Front

Which element is the most reactive metal?

Back

Francium.

Front

Define atomic number.

Back

The number of protons in the nucleus of an atom, which determines the element's identity.

Front

What is an ion?

Back

An atom or molecule that has gained or lost one or more electrons, resulting in a net charge.

Front

What is the difference between cations and anions?

Back

Cations are positively charged ions (lost electrons), while anions are negatively charged ions (gained electrons).

Front

What is the significance of the periodic table?

Back

It organizes elements based on their atomic number, electron configurations, and recurring chemical properties.

Front

What is the most reactive non-metal?

Back

Fluorine.