Unit 5 - States of Matter and The Periodic Table

Which Group is the most Reactive?

• Metalloids

• Transition Metals

• Alkali Metals

• Actinides

Which group contains 8 electrons?

• Noble Gasses

• Halogens

• Alkali Earth Metals

• Transition Metals

Why is it important to understand and learn chemistry?

• So we can safely cook food.

• It isn't.

• Because it plays a role in everyone's day to day life

• To understand the basic knowledge of Energy, like solar power.

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What's the difference between Physical and Chemical change?

• The appearance doesn't change in Chemical change.

• In physical change, a new substance is found.

• Physical Change isn't a thing

• Physical changes always look, feel and smell the same.

How has our knowledge of the atom changed over time?

• Its stayed the same forever

• The proton count and electron count

• The involvement of quantum mechanics

• Different elements now have more atoms

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The atomic theory: the theory that all matter is made up of tiny indivisible ________

• Electrons

• Particles

• Cells

• Electron Shells

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What is an isotope?

• An element with the same number of protons and neutrons

• An element with 3 protons, 3 neutrons, and 3 electrons.

• A type of triangle

• An element that has equal protons

What is atomic mass?

• The weight of an atom bomb

• The mass of an atom

• The mass of an electron

• The mass of protons and electrons combined

How many elements are on the periodic table of elements?

• 118

• 347

• 69

• 117

This group is a semiconductor.

• Alkali earth metals

• Non-Metals

• Noble Gasses

• Mettaloids

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