Chemistry: Periodic Table Trends

Question 1

Be able to draw the arrows regarding periodic table trends for Atomic Radius, Ionization Energy, Electronegativity, Metallic characteristics, Nonmetallic characteristics

Answer 1

check answer on slide 21 of Physical Science PPT

Question 2

Define: Atomic Radius

Answer 2

size of atom; measure from center of nucleus to outermost electron shell

Question 3

Based on the Periodic Table, which element has the largest atomic radius, and which has the smallest atomic radius?

Answer 3

Largest atomic radius: Fr
Smallest atomic radius: He

Question 4

Define: Electronegativity

Answer 4

measures how strongly an atom attract electrons

Question 5

How to metals and nonmetals compare in strength in regards to electronegativity?

Answer 5

metals = low electronegativity

nonmetals = high electronegativity

Question 6

What element has the highest electronegativity and which has the smallest electronegativity

Answer 6

Highest electronegativity: F (Fluorine)

Smallest electronegativity: Fr (Francium)

Question 7

Define: Ionization energy

Answer 7

amount of energy required to remove an electron from an atom

Question 8

T/F: non-metals and noble gases have high ionization energy

Answer 8

True

Question 9

Which elements have the highest and lowest ionization energy?

Answer 9

Highest: He (Helium)
Lowest: Fr (Francium)