Periodic Table

Front

What are nonmetals?

Back

Nonmetals are elements that are typically gases or dull brittle solids and poor conductors of heat and electricity.

Front

How many valence electrons do elements in Group 2 have?

Back

Elements in Group 2 have 2 valence electrons.

Front

How many valence electrons do elements in Group 13 have?

Back

Elements in Group 13 have 3 valence electrons.

Front

What are metalloids?

Back

Metalloids are elements that have properties of both metals and nonmetals; they are often solids and can act as semi-conductors.

Front

What are the vertical columns on the periodic table called?

Back

The vertical columns on the periodic table are called Groups.

Front

What are the horizontal rows on the periodic table called?

Back

The horizontal rows on the periodic table are called Periods.

Front

What is the atomic number?

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 significance of valence electrons?

Back

Valence electrons are important because they determine how an element will react chemically with other elements.

Front

What are transition metals?

Back

Transition metals are elements found in groups 3-12 of the periodic table, known for their ability to form various oxidation states and colored compounds.

Front

What is the periodic law?

Back

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