Periodic Trends Flashcards
1
Q
What are the 4 major periodic trends
A
- Atomic Radii (AR)
- Ionization Energy (IE)
- Ionic Radii (IR)
- Electronegativity (EN)
2
Q
what is atomic radii?
A
the size of an atom
3
Q
when moving left to right, what happens to atomic radii?
A
decreases
4
Q
when moving down the table, what happens to atomic radii?
A
increases
5
Q
why does atomic radii decrease when moving left to right on the table?
A
of protons and electrons increase, increasing pull between nucleus and electrons
6
Q
why does atomic radii increase when moving down the periodic table?
A
more shells adding more space around the atoms
7
Q
what is an ion?
A
atom or group of atoms with a positive or negative charge
8
Q
what charge does a cation have?
A
positive
9
Q
what charge does an anion have?
A
negative
10
Q
A
