Things that "matter"
The amount of matter that makes up an object is ____________________
Mass
What is the tiny extremely dense core at the center of an atom?
Nucleus
Most metals are _________________
Solid
Highly reactive elements that tend to form comounds with alkali and alkaline earth metals are _______________
Halogens
a compound made of molecules is __________________
Molecular Compound
The element that is the basic building block of all compounds is _________________
Carbon
The amount of matter in one unit of volume is ________________
Tiny particles of which all matter is composed are _______________
Atoms
The densist of the everyday metals is ________________
Lead
The halogen that is added to toothpaste and drinking water is _________________
Fluorine
A compound made of charged atoms
Ionic Compound
The most abundant element at the surface of the earth is ____________________
Oxygen
Anything that takes up space and has mass is ________________________
Electrons
The Semimetal that is used to make computer chips is called ________________
The halogen that is useful as a bleach and a germ killing agent is __________________
Chlorine
A ______________________ is a substance composed of one or more types of atoms bonded together.
Compound
The elements which do not combine with anything else except under unusual circumstances are ______________________
Noble Gases
The measure of the pull of gravity on an object is _________________________
Weight
The two particles that make up the nucleus of an atom are _________________ and _________________
Protons and Neutrons
The only metal that is liquid at room temperature is ___________________
Mercury
The halogen that is added to table salt to prevent a deficiency disease is __________________
Iodine
A process in which atoms of elements or compounds are rearranged to form new substances is _____________
Chemical reaction
The Colorless, odorless gas that makes up 78% of the earth's atmosphere is _______________________
False/More
Two or more atoms firmly bound together form a Neutron.
True/False: if false, what is the correct answer?
False/Molecule
A very hard metal which is an important ingredient in stainless steel is _________________
Nickel
The study of what substances are made of an how one substance can be changed into another is ____________________
Chemistry
The rapid reaction of any substance with oxygen is _____________________
Combustion
The organized arrangement of all known elements is the _____________________
Periodic Table of Elements
The metric unit that is used to measure an objects mass is _________________
Gram or kilograms
The simplest kind of atom with one proton and one electron is _____________________
Hydrogen
The hardest of all known substances is _______________
Diamond
This is formed by electrons that are in orbit the same distance from the nucleus.
Shell
This is formed by electrons zooming around the nucleus of an atom.
Electron Cloud
Iodine, when heated, does not melt but instead _________________, or turns into gas.
Sublimes