EASA Part 66 Physics Quiz

An atom with 3 free electrons in its outer shell is said to be.

• pentavalent

• covalent

• trivalent

What is the mass number of an element?

• Number of electrons and protons

• Number of neutrons and protons

• Number of electrons and neutrons

What do you get when you add 2H2 and O?

• H2 O

• 2H2 O

• 2H2 O2

The splitting of a chemical compound is called.

• bombardment

• synthesis

• analysis

What is the atomic number of an element?

• The number of neutrons in the atom

• The number of electrons in the atom

• The number of protons in the atom

An atom with 5 free electrons is said to be.

• pentavalent

• covalent

• trivalent

An atom consists of.

• protons, neutron and electrons

• protons and electrons

• protons and neutrons

The maximum number of electrons in the inner shell of an atom is.

• 8

• 2

• 4

The mass of a proton equals the mass of a.

• neutron

• beta particle

• electron

Catalysts.

• speed up reactions

• speed up and slow down reactions

• slow down reactions