Ch5 Periodic Law

Moseley corrected Mendeleev's principle to state: The physical and chemical properties of the elements are periodic functions of their atomic numbers.

• periodic table

• periodic law

• electronegativity

• periodicity

It is the arrangement of the elements in order of their atomic numbers so that elements with similar properties fall in the same column, or group,

• periodic law

• periodic table

• periodicity

• electronegativity

Tags

NGSS.HS-PS1-1

These are the 14 elements that make up the 4f block.

• actinides

• lanthanides

• bromides

• arsenides

These are the 14 elements made up of the 5f block.

• actinides

• lanthatnides

• bromides

• arsenides

The elements of Group 1 are known as the _____________.

• alkali metals

• alkaline-earth metals

• transition metals

• precious metals

The elements of Group 2 of the periodic table are called the __________________.

• alkali metals

• transition metals

• alkaline-earth metals

• actinides

The d-block elements are metals with typical metallic properties and are often referred to as _______________.

• alkali metals

• alkaline-earth metals

• transitions metals

• transmission metals.

The p-block elements together with the s-block elements are called the __________.

• transition metals

• main-group elements

• halogens

• nature's elements

These are the most reactive nonmetals, also known as salt formers.

• noble gases

• halogens

• main-group elements

• transition metals

One-half the distance between the nuclei of identical atoms that are bonded together.

• Atomic radius

• Atomic circumference

• electronegativity

• ionization energy