Atoms, Periodic Table and Bonding

Front

What is the chemical symbol for Silicon?

Back

Si

Front

How would you draw a Lewis Dot Diagram for Magnesium?

Back

The Lewis Dot Diagram for Magnesium shows the symbol 'Mg' with two dots representing its two valence electrons.

Front

In the chemical formula 2H₂O, how many Oxygen atoms are present?

Back

2

Front

Periods are __________ and Groups are ____________

Back

Periods are rows and Groups are columns.

Front

What is at the center of every atom?

Back

A nucleus.

Front

What are atoms made of?

Back

Atoms are made of protons, neutrons, and electrons.

Front

What is the charge of a proton?

Back

Positive.

Front

What is the charge of an electron?

Back

Negative.

Front

What is the atomic number?

Back

The atomic number is the number of protons in the nucleus of an atom.

Front

What is a molecule?

Back

A molecule is a group of two or more atoms bonded together.