Chapter 4 (the Periodic Table) Flashcards
1
Q
What are atoms?
A
Atoms are the particles that make up all things in the universe
2
Q
What is indirect evidence
A
Evidence that hasn’t been seen directly but is known to be true
3
Q
What is an electron configuration?
A
An arrangement of electrons in an electron she’ll
4
Q
What is the nucleus?
A
The heavy core at the centre of the atom. It’s made of protons and neutrons.
5
Q
What 3 main categories is the periodic table sorted into?
A
Metals, non-metals and metalloids.
6
Q
What is group 18 on the periodic table
A
Noble gasses. They are very stable. (They don’t react often)
7
Q
Group 17 of the periodic table
A
Halogens.
8
Q
What is group 1 on the periodic table?
A
Alkali metals
9
Q
What is group 2 on the periodic table?
A
Alkaline earths
10
Q
What are organic molecules
A
Molecules that have a backbone of carbon
