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Atomic Structure
The Periodic Table
Atoms &Molecules
The PT 2
100
This is the center of an atom where the protons & neutrons are located.
What is the nucleus?
100

This is the order The Periodic Table is in.

What is proton number or atomic number

100

Two or more of these make up a molecule.

What is an atom/element?

100

What are group 1 elements called?

Alkali Metals

200
These are positively charged.
What are protons?
200

The left side of the periodic table is mostly what?

Metals

200

If you see two different shapes not connected, you have a what

mixture

200

What are group 17 elements called?

Halogens

300
These are negatively charged.
What are electrons?
300
This has 78 protons.
What is Platinum?
300

Chocolate chip ice cream is classified as what? (be specific)

Heterogenous mixture

300

What are the "stair step" elements called?

metalloids

400
These carry no charge.
What are neutrons?
400
The atomic number of this element is 82.
What is lead?
400
This is the smallest particle in an atom.
What is an electron?
400

How many electrons can go in the second energy level of an atom

8

500
Matter that is made up of only one kind of atom.
What is an element?
500
This element has half the number of protons as iron.
What is aluminum?
500

How many atoms are in H2O

3

500

How can you determine the number of valence electrons?

The Group Number