Benchmark 4 Study Guide

The most penetrating type of radiation.

Negatively charged particles emitted from a nucleus at high speed.

The amount of time it take for half of a radioactive isotope to break apart.

The process by which nuclei having low masses are united to form nuclei with larger masses.

Atoms of the same element with a different number of neutrons.

Stopped by a piece of paper, a helium nucleus that is the weakest form of radiation.

The splitting apart of a nucleus of a large atom into two smaller atoms.

Group18, inert, do not rom compounds

The most reactive group of metals.

Elements that form salts by combining with metals.

Includes oxygen and sulfur

React to form bases, found in minerals

Form multiple charges, used to make pigments

Found on the stair step line; part metal part nonmetal

What does the chemical symbol represent for an element?

This shows the number of elements in a compound and how they are bonded together.

What do dot diagrams represent?

What kind of chemical bond is formed when an equal exchange or transfer of electrons occurs.

Hold atoms together in a compound

A group of covalently bonded atoms that acts together as one charged atom.

This is an abbreviation used for elements in chemistry.

A chemical bond that occurs when atoms share electrons.

What is an insoluble compound that forms during a chemical reaction?

Numbers that precede chemical formulas, used to balance equations.