The Basics
The smallest unit of matter.
What is an ATOM?
More than one hundred substances that cannot be chemically broken down into simpler substances and are primary constituents of matter, distinguished by its atomic number.
What is an ELEMENT?
Simplest form of a compound that can exist when two or more atoms combined to form a substance (O2, F2, H2)
What is a MOLECULE?
Column in the periodic table, which denotes elements with the same properties.
What is a GROUP?
The Atomic Number for Au.
What is 79?
Any form of matter that is uniform throughout and has consistent properties.
What is a SUBSTANCE?
Particles with no charge, but have mass.
What is a NEUTRON?
Pure substance made of molecules bonded together. (H2O, CO2, SiO2)
What is a COMPOUND?
Row in the periodic table.
What is a PERIOD?
The element with the atomic symbol "C"
What is Carbon?
Anything with mass and volume.
What is MATTER?
Positively charged particles with mass.
What are PROTONS?
What is an Element?
An element that conducts heat, electricity and is shiny.
What is a METAL?
What Elements are in H2O?
Hydrogen, Oxygen
A solid material whose atoms, molecules, or ions are arranged in an ordered pattern.
What is a CRYSTAL?
Negatively charged particles.
What are ELECTRONS?
Made up of protons, neutrons, and electrons.
Atoms
Element located on the right of the periodic table that does not conduct electricity well.
What is a NONMETAL?
The atomic mass for H .
What is 1.007?
The big number that goes before a chemical symbol that shows how many molecules are in a chemical formula.
What is an COEFFICIENT?
A certain amount of energy an electron can have in an atom.
What is an ENERGY LEVEL?
How many atoms are in H20 ?
Three
An element that has both the properties of metals and non-metals.
What is a METALLOID?
The number of protons in an atom, and what the periodic table is arranged by.
What is ATOMIC NUMBER?