There are 2 groups in the Rare Earth Metals. What are they?
1. Lanthanide
2. Actinide
400
What are 3 properties of Alkali Metals?
Good conductor of heat and electricity
Soft Metals
Have one electron to give up freely so therefore they can bond with other elements easily.
400
What is Elements?
pure substances that cannot be broken down into simpler substances (contain only one kind of atom) - they are what are listed on the Periodic Table of ELEMENTS!
400
What is Compound?
Pure substances that contain 2 or more DIFFERENT elements stuck (bonded) together.
400
What is This Family does not want to bond with other elements because they have 8 valance electrons?
Noble Gases
400
What is an Isotope?
Atoms with the same number of protons but different number of neutrons.
500
Matter is classified into two main categories. Which are?
1. Pure Substances
2. Mixtures
500
What is a Molecule?
pure substances that contain 2 or more of the SAME element stuck (bonded) together.
500
Halogens are cool because?
At room temperature they can be a solid, liquid, or gas.