Periodic Table, Bohr and Lewis Dot Models

Front

What is the period for Bromine (Br)?

Back

4

Front

Is this a correct dot diagram for magnesium (Mg)?

Back

True

Front

What is the formula for calculating mass number?

Back

Protons + Neutrons = Mass Number

Front

What is the name of the element with atomic number 10?

Back

Neon

Front

How many valence (outer) electrons does an Oxygen atom have?

Back

6

Front

What does the atomic number represent?

Back

The number of protons in an atom.

Front

What is the significance of valence electrons?

Back

They determine an atom's chemical properties and bonding behavior.

Front

What is the Bohr model of the atom?

Back

A model that depicts electrons orbiting the nucleus in defined paths.

Front

What is a Lewis Dot Diagram?

Back

A representation of an atom's valence electrons using dots around the element's symbol.

Front

What is the difference between atomic mass and mass number?

Back

Atomic mass is the weighted average of isotopes, while mass number is the total number of protons and neutrons.