Atomic History Structure Ions and Isotopes

What is atomic number?

• Number of protons in an atoms 
• Number of neutrons in an atom
• Mass of an atom
• Charge on an atom

What is atomic number?

• Number of protons in an atoms 
• Number of neutrons in an atom
• Mass of an atom
• Charge on an atom

Which subatomic particles are found in the nucleus of an atom?

• Protons and Electrons
• Protons and Neutrons
• Neutrons and Electrons
• Protons, Neutrons and Electrons

How many protons does an aluminium atom have? (Use the image to help you)

• 27
• 14
• 40
• 13

How many neutrons does a sodium atom have? (Use the image to help you)

• 23
• 11
• 12
• 34

The atomic number of an element that has 9 protons, 9 electrons, and 10 neutrons is _____.

• 9
• 10
• 19
• 28

In order for an atom to be neutral what has to be true?

• The atom has more protons than neutrons
• The atom has more neutrons than protons
• The atom has the same number of protons and neutrons
• The atom has the same number of protons and electrons

What is an ion?

• A Charged Atom
• A Large Atom
• A Small Atom
• A Cute Atom

Cations are...

• Positive
• Negative
• Neutral
• Purring

Anions are...

• Positive
• Negative
• Neutral
• Crying