Chemistry Interim #3 Review Questions

Front

Each column in the periodic table is called a _________.

Back

group

Front

Electronegativity __________ from left to right within a period and __________ from top to bottom within a group.

Back

increases, decreases

Front

Using your Periodic Table of Elements, which element would have similar chemical properties to the element Na (Sodium)?

Back

K

Front

How many protons are in this element? (Element with atomic number 79)

Back

79

Front

What is the identity of Element B? (Element with symbol Ta)

Back

Ta

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the significance of the periodic table?

Back

It organizes elements based on their atomic number and properties.

Front

What are alkali metals?

Back

Elements in group 1 of the periodic table, highly reactive, especially with water.

Front

What is the trend of atomic radius in the periodic table?

Back

Atomic radius decreases from left to right and increases from top to bottom.

Front

What is the definition of electronegativity?

Back

The ability of an atom to attract electrons in a chemical bond.