Periodic Table

General Facts

100

Who was the first to organize the periodic table?

Dimitri Mendeleev

100

How did Mendeleev organize his table?

By mass and properties

100

Who reorganized the periodic table?

Henry Mosley

100

How did Mosley rearrange his table?

Increasing atomic number

100

What law was discovered once the table was rearranged by atomic number?

Periodic Law

Properties

100

The columns on the table are known as ___________

Groups or Families

100

The rows on the table are known as ______________

Periods

100

What block on the table does Fe belong?

D

100

What block on the table does Mg belong?

S

100

Group 2 elements are known by a special name. What is that name?

Alkaline Earth Metals

Know Group 1, 17, and 18 also

Trends

100

Elements on the left side of the table are __________. Which means they have similar properties like being shiny and ductile.

Metals

100

What is the noble gas notation for Sr?

[Kr] 5s²

100

How many valence electrons does Al have?

3

100

What oxidation number (charge) does Cl have?

1-

100

What Group would form ions with a 3+ charge?

13

More Trends

100

Silicon is what type of element: metal, nonmetal, or metalloid?

Metalloid

100

What trend is a measured ability of an atom to pull a shared pair of electrons closers to itself?

Electronegativity

100

What has a higher electronegativity: S or Te

S

100

What is the natural phenomenon that can explain all trends across a period?

Shielding Effect

100

Which atom is smaller: K or Ca?

Ca

Even more Trends

100

Explain what changes causes trends to act they way they do as you move down a group.

Addition of energy levels

100

Which element has a higher ionization energy: Se or Br?

Br

100

Place these in order from largest to smallest: Ga, Sn, In, Ge

In, Sn, Ga, Ge

100

Write the noble gas notation of W

[Xe] 4f¹⁴5d⁴6s²

100

What type of element is iodine (I): metal, nonmetal, or metalloid?

Nonmetal