Matter and Chemistry Ch 6 Review for test

What is the densest everyday metal?

Silicon is a semi-metal that is used to make computer chips.

A _______ is a tiny group of two or more atoms that are bonded tightly together.

Combustion is the rapid reaction of any substance with oxygen

What are elements that do not combine with anything else except under unusual circumstances?

Most metals are silver and solid

What are the tiny particesl that swarm at tremendous speeds around the nucleus?

Chlorine is a halogen the is useful as a bleach and germ-killing agent.

Compounds made of of charged atoms.

Weight is the amount of matter that makes up an object.

Which element is a colorless, odorless gas that makes up 78% of the earth's atmosphere?

What is the periodic table?

An emerald is the hardest of all known substances

What are the metric units used to measure an object's mass?

Which halogen is added to toothpaste and drinking water?

A molecular compound is a compound made up of molecules.

What metal is liquid at room temperature?

A _____ ______ is a process in which atoms of elements or compounds are rearranged to form new substances.

Nickel is very important for making stainless steel.

Carbon is the simplest kind of atom; it has one proton and one electron.

A shell is formed by elctrons in orbit the same distance from the nucleus.

What are the tiny particles of which all matter is composed?

An electron cloud is formed by electrons zooming around the nucleus of an atom.

What is the dense core at the center of an atom?

How many protons does carbon have?

What is the measuer of the pull of gravity on an object?

Matter is anything that takes up space and has weight.

the study of what substances are made of and how one substance can be changed into another

Nitrogen is the most abundant element at the surface of the earth.

Anything lacking an electrical charge is said to be _____?

Which halogen is added to table salt to prevent a deficiency disease.

The _________ _________ is the number of protons an atom has.

Density is the amount of matter in one unit of volume

What are the two particles that make up the nucleus?

_______ are highly reactive elements that tend to form compounds with alkali and alkaline earth metals.