Periodic Table-Chemistry

Front

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

Back

Elements in the same group have the same number of electrons in their outer shell, which determines their chemical properties.

Front

What is a group in the context of the periodic table?

Back

A group is a vertical column in the periodic table, where elements share similar properties.

Front

Name a common property of halogens.

Back

Halogens are highly reactive nonmetals and typically form salts when combined with metals.

Front

Which element is classified as a nonmetal?

Back

Boron (B) is classified as a nonmetal.

Front

What are metalloids?

Back

Metalloids have properties that are intermediate between metals and nonmetals.

Front

How many groups are there in the periodic table?

Back

There are 18 groups in the modern periodic table.

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

What is the difference between metals and nonmetals?

Back

Metals are typically good conductors of heat and electricity, while nonmetals are poor conductors and often have higher electronegativities.

Front

What are alkali metals?

Back

Alkali metals are the elements in group 1 of the periodic table, known for being highly reactive and having one electron in their outer shell.

Front

What is the periodic law?

Back

The periodic law states that the properties of elements are a periodic function of their atomic numbers.