Unit 1 ihub Test

Front

What is the atomic number of Helium (He)?

Back

2

Front

What is the atomic number of Beryllium (Be)?

Back

4

Front

What is the atomic number of Aluminum (Al)?

Back

13

Front

Which atom is harder to remove an electron from: Sodium (Na) or Oxygen (O)?

Back

Oxygen (O) is harder to remove an electron from.

Front

What is a molecule?

Back

Two or more atoms that are combined, which can be the same two atoms of the same element.

Front

What happens when amber and fur are rubbed together?

Back

Amber becomes negatively charged and fur becomes positively charged.

Front

During the charging process of amber and fur, what is transferred?

Back

Electrons are transferred to the amber.

Front

What is the definition of atomic number?

Back

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

Front

What is a compound?

Back

A substance formed when two or more different elements are chemically bonded together.

Front

What is the mass number of an atom?

Back

The total number of protons and neutrons in the nucleus of an atom.