Atomic Structure

What part of an atom has a mass of 1 and a charge of +1?

• Neutrons

• Protons

• Nucleus

• Electrons

Where are electrons found?

• In neutrons

• In shells

• In the nucleus

• In protons

What particles have a charge of -1 and a very small mass?

• protons

• neutrons

• electrons

• shells

The atomic number is

• the number of neutrons

• the number of neutrons and protons added together

• the number of electrons and protons added together

• the number of protons

The atomic mass is

• protons and electrons added together

• protons and neutrons added together

• electrons and neutrons added together

• neutrons and electrons added together

How many electrons can fit in the first shell?

• 1

• 2

• 3

• 4

Elements in group 7 have how many electrons in their outer shell?

• 1

• 3

• 5

• 7

The period (row) number determines the

• number of electrons

• number of neutrons

• number of shells

• number of protons in the nucleus

Why are atoms neutrally charged?

• Balanced numbers of protons and neutrons

• Equal numbers of electrons and protons

• The neutrons have no charge

• Atoms always have a positive charge

What element has the symbol N?

• Neon

• Nitrogen

• Nickel

• Sodium