1. What is the difference between a rotation and revolution?
JUST DO IT
Daily Riddle
In Question
What is the difference between a rotation and revolution?

2. Today in your notebooks
Left side items
Right side items
States of matter BP
States of matter notes
Solid, liquid, gas HW
Bill Nye phases of matter
Phase changes graph
Molecular kinetic energy notes
Atom diagram, brainpop
Atoms notes
Element box calculations
Element box notes
P, N, E practice HW
Periodic table
PT groups/famillies, PT brainpop
PT notes
Atomic trends
Atomic trends notes

3. Atomic trends
Atomic radius- size of the atom. Decr. -across the row. Even though more electrons are added to the outside shell, it doesn’t become bigger. Protons are bigger and stronger than electrons, and the strength of the protons pulls them in. Incr. -down a group (column), each period adds an electron shell
2) Electron Affinity- the ability to attract electrons. Incr. - across a row. The strong protons in the nucleus attract the electrons. Groups 16/17 only have 1-2 electron spots to fill so it’s easy for them to grab the electrons. Decr.- down a column. The nucleus is farther away and less likely to attract an electron.
3) Ionization energy- the energy needed to take an electron from the atom. Incr. as you move across the row. Easiest to take an electron from elements in groups 1,2 and 12.
Decr. – as you move down a column

9. Bonding (Right) What is a chemical bond?
What is a molecule?
What is a compound?
4) What are the three types of bonds? How are they different?
5) What is a polar molecule?
CHEMICAL BOND: An attraction between atoms, forms a chemical substance
MOLECULE: Atoms of a single element or different element joined together
COMPOUND: one or more molecules joined together
4) IONIC: a transfer of electrons. Breaks down into ions.
COVALENT: a sharing of electrons. Breaks down into molecules
HYDROGEN: the bond between a hydrogen atom and an electronegative atom (O,N, F)
5) POLAR MOLECULE: a molecule with a positive and negative side

10. DETAILS