What is this?
Anything that takes up space and has mass is
Matter
The measure of the pull of gravity on an object is
Weight
Most metals are
Solid
What is the simplest kind of atom with one proton and one electron?
Hydrogen
The halogen that is added to table salt to prevent a deficiency disease is
Iodine
The tiny particles of which all matter is composed are
Atoms
The tiny, extremely dense core at the center of an atom
nucleus
The most abundant element at the surface of the earth is
Oxygen
The two particles that make up the nucleus of an atom
Protons and Neutrons
The element that is the basic building block of all the compounds is
Carbon
The amount of matter that makes up an object is
Mass
The metric unit that is used to measure an object’s mass
Gram or Kilograms
The only metal that is liquid at room temperature
Mercury
What formed by electrons that are in orbit the same distance from the nucleus?
Shell
The halogen that is useful as a bleach and a germ-killing agent is
Chlorine
The tiny particles that swarm at tremendous speeds around the core of an atom
If it is lacking an electrical charge it is
Neutral
What highly reactive element that tends to form compounds with alkaline earth metals?
Halogens
The semimetal that is used to make computer chips is called
Silicon
The halogen that is added to toothpaste and drinking water is
Fluorine
The amount of matter in one unit of volume
Density
Formed by electrons zooming around the nucleus of an atom is
Electron Cloud
A very hard metal which is an important ingredient in stainless steel is
Nickel
The number of protons an atom has
Atomic Number
The colorless, odorless gas that makes up 78% of the earth
Nitrogen