Test Review #4 -Periodic Table

Front

What is the arrangement of elements in the modern periodic table?

Back

Elements are arranged in order of increasing atomic number.

Front

What happens to the atomic radius as you move down a group in the periodic table?

Back

The atomic radius increases as you move down a group.

Front

What is the trend in metallic character as you move from left to right across a period?

Back

Metallic character decreases as you move from left to right across a period.

Front

What is electronegativity?

Back

Electronegativity is the ability of an atom to attract electrons in a chemical bond.

Front

Which element has the highest electronegativity in Period 3?

Back

The element with the highest electronegativity in Period 3 is Chlorine (Cl).

Front

What occurs when a barium atom loses two electrons?

Back

It becomes a positive ion and its radius decreases.

Front

What is the trend in electronegativity as you move down a group?

Back

Electronegativity generally decreases as you move down a group.

Front

What is the significance of atomic number in the periodic table?

Back

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

Front

How does the atomic radius change across a period?

Back

The atomic radius decreases as you move from left to right across a period.

Front

What is a positive ion?

Back

A positive ion, or cation, is formed when an atom loses one or more electrons.