Review - Periodic Table

Front

Who developed the periodic table based on increasing atomic number?

Back

Henry Moseley

Front

Which element has the greater ionization energy: Magnesium (Mg), Phosphorus (P), Fluorine (F), or Silicon (Si)?

Back

Phosphorus (P)

Front

What are the general characteristics of noble gases?

Back

High ionization energy, low electronegativity, low reactivity.

Front

Why do atoms get bigger as you move down the periodic table?

Back

The atoms have more energy levels.

Front

What is the trend of atomic radius across a period and down a group?

Back

Atomic radius decreases across a period and increases down a group.

Front

What is ionization energy?

Back

The energy required to remove an electron from an atom.

Front

What is electronegativity?

Back

A measure of the tendency of an atom to attract a bonding pair of electrons.

Front

What happens to ionization energy as you move across a period?

Back

Ionization energy generally increases.

Front

What happens to electronegativity as you move down a group?

Back

Electronegativity generally decreases.

Front

What is the significance of the atomic number?

Back

It represents the number of protons in an atom and determines the element's identity.