Periodic Table and Electrons

Front

What is the electron cloud model?

Back

The electron cloud model describes electrons as not following fixed orbits, but being found more frequently in areas around the nucleus.

Front

What are valence electrons?

Back

Valence electrons are the electrons that are farthest away from the nucleus and are involved in chemical bonding.

Front

Which element is not a metal?

Back

B (Boron) is not a metal.

Front

What is the electron configuration of Manganese (Mn)?

Back

1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁵.

Front

What did Meyer contribute to the periodic table?

Back

Meyer contributed the concept of atomic mass in organizing elements.

Front

What is the significance of valence electrons in chemical reactions?

Back

Valence electrons determine how an atom can bond with other atoms.

Front

What is the periodic law?

Back

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

Front

What are the main groups of the periodic table?

Back

The main groups are alkali metals, alkaline earth metals, transition metals, halogens, and noble gases.

Front

What is the difference between metals and nonmetals?

Back

Metals are typically shiny, conductive, and malleable, while nonmetals are dull, insulative, and brittle.

Front

What is an atomic number?

Back

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