Periodic Table and Atomic Structure

How many columns are there on the Periodic Table?

The number of electrons on the atom’s outer energy level is called?

The number of neutrons is 8

How many rows are there on the Periodic Table?

Who discovered the positively charged nucleus and that atoms are mostly empty space?

The number of protons is 16

Who discovered that electrons are found in electron clouds outside the nucleus?

Whose model is described as the “planetary” model of the atom?

The row tells us the elements ______ level (also called orbitals or shells).

What is the number of neutrons?

Who discovered the electron?

Who believed that all things were small, hard, solid, indivisible particles?

What is the atomic number?

What is the atomic mass?

What is the number of protons and electrons?

The number of electrons is 8

What are the COLUMNS of the Periodic Table called?

What is the atomic mass?

The atomic mass equals the number of protons and neutrons

Who described the atom model as “plum pudding”?

The atomic mass will most likely have be decimal number

What are the ROWS of the Periodic Table called?

Who thought that electrons traveled in specific energy levels or oaths outside the nucleus?

How do you find the number of neutrons?