Chapter 4 (the Periodic Table) Flashcards Preview

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Flashcards in Chapter 4 (the Periodic Table) Deck (10)
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1

What are atoms?

Atoms are the particles that make up all things in the universe

2

What is indirect evidence

Evidence that hasn't been seen directly but is known to be true

3

What is an electron configuration?

An arrangement of electrons in an electron she'll

4

What is the nucleus?

The heavy core at the centre of the atom. It's made of protons and neutrons.

5

What 3 main categories is the periodic table sorted into?

Metals, non-metals and metalloids.

6

What is group 18 on the periodic table

Noble gasses. They are very stable. (They don't react often)

7

Group 17 of the periodic table

Halogens.

8

What is group 1 on the periodic table?

Alkali metals

9

What is group 2 on the periodic table?

Alkaline earths

10

What are organic molecules

Molecules that have a backbone of carbon