8th Grade Spelling Test 1 Words

Front

A subatomic particle with no electric charge, found in the nucleus of an atom.

Back

Neutron

Front

Elements with properties intermediate between metals and nonmetals.

Back

Metalloids

Front

The central part of an atom, containing protons and neutrons.

Back

Nucleus

Front

Electrons in the outer shell of an atom that are involved in forming bonds.

Back

Valence electrons

Front

A chart of the elements arranged by atomic number, showing the patterns in their properties.

Back

Periodic table

Front

A group of inert gases in Group 18 of the periodic table, known for their lack of reactivity.

Back

Noble gases

Front

Substances formed when two or more elements are chemically bonded together.

Back

Compounds

Front

A proposed explanation for a phenomenon, used as a starting point for further investigation.

Back

Hypothesis

Front

The act of noting and recording something with instruments or the senses.

Back

Observation

Front

Chemical bonds formed by the sharing of electron pairs between atoms.

Back

Covalent bonds