ATOMIC STRUCTURE & PERIODIC TABLE

1. Which of these has a negative charge?

• 
  Proton

• Neutron

• Electron

• Oatmeal

Select which things are made up of atoms:

• 
  Orange juice

• A desk

• You and me

• Grass

This particle determines which element it is.

• 
  Protons

• Neutrons

• Electrons

• Mrs. Joy😁

Each column in the periodic table, they contain similar properties.

• 
  Period

• Group

• Element

• Atom

A particle that moves around the nucleus is a(n)...

• 
  Proton

• Neutron

• Electron

• Quark

The atomic number of sodium (Na) is 11. How many valence electrons does sodium

have?

• (a) 1

• b) 2

• (c) 7

• (d) 8

The atomic number of Sulphur (S) is 16. Identify the number of electrons in each shell of

Sulphur.

• (a)2, 8, 6

• (b)2, 8, 8

• (c)2, 2, 8, 4

• (d)2, 4, 8, 2

The image shows the scientific notation of sodium. What is the atomic mass of Na?

• (a)11

• (b)12

• (c)23

• (d)34

What is the smallest unit of matter? It is composed of protons and neutrons, held together in the nucleus, and electrons around the nucleus in different electron orbitals, which form an electron cloud.

• cell

• nucleus

• atom

• electron

What is a subatomic particle with a positive charge that is in the nucleus of an atom?

• neutron

• proton

• electron

• valence electron