Periodic Table Review

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

Which group of metals is the most reactive?

Back

Group 1- Alkali metals are the most reactive metals.

Front

How many neutrons does an Oxygen atom have?

Back

An Oxygen atom has 8 neutrons.

Front

What are metalloids?

Back

Metalloids are elements that have properties of both metals and nonmetals, and they are located along the staircase line on the periodic table.

Front

Which group contains all non-metals that are extremely reactive?

Back

Group 17- Halogens contains all non-metals that are extremely reactive.

Front

What is the difference between metals and nonmetals?

Back

Metals are typically shiny, good conductors of heat and electricity, and malleable, while nonmetals are usually dull, poor conductors, and brittle.

Front

What is the significance of the periodic table?

Back

The periodic table organizes elements based on their atomic number, electron configuration, and recurring chemical properties.

Front

What are noble gases?

Back

Noble gases are a group of nonmetals in Group 18 of the periodic table that are known for their lack of reactivity due to having a full valence shell.

Front

What is an element's atomic mass?

Back

The atomic mass is the weighted average mass of an element's isotopes, measured in atomic mass units (amu).

Front

What are alkali metals?

Back

Alkali metals are highly reactive metals found in Group 1 of the periodic table, including lithium, sodium, and potassium.