Final Exam Review Part 1H

Front

What makes something radioactive?

Back

An unstable nucleus.

Front

How many total electrons can the d sublevel hold?

Back

10

Front

The blue section of the wave is measuring __________.

Back

Wavelength.

Front

Which element has the smallest atomic radius?

Back

Argon.

Front

JJ Thomson came up with which model for the atom?

Back

Plum pudding model.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

Front

What is the principle of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction.

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 an ion?

Back

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