Atomic Theory
An atomic particle that has no charge
What is a neutron?
The average mass of the isotopes of that element
What is the atomic mass?
Have a wider variety of properties than metals
What are nonmetals?
An atom or a group of atoms that has either a positive or negative charge
What is an ion?
Any ionic compound that can be made from a neutralization reaction
What is salt?
Small pieces can not be cut into smaller pieces
What is an atom?
Mendeleev created the first _________ in 1869.
What is the Periodic table?
Substances that form when atoms from two or more elements bond together
What is a compound?
A neutral group of atoms joined by covalent bonds
What is a molecule?
A compound that reacts with metals and carbonates, tastes sour, and turn blue litmus paper red
What is acid?
The number of protons in the nucleus
What is the atomic number?
Organized the elements into the modern periodic table
Who is Dmitri Mendeleev?
Electrons that have higher amounts of energy
What are valence electrons?
The chemical bond formed when two atoms share electrons
What is a covalent bond?
A compound that changes color when it comes into contact with an acid
What is an indicator?
Atoms with the same number of protons and different numbers of neutrons
What is an isotope?
A chart showing all of the elements arranged according to the repeating pattern of their properties
What is a periodic table?
The ability of an object to transfer heat or to carry an electric current
What is thermal conductivity?
When atoms that easily lose electrons react with atoms that easily gain electrons, they transfer valence electrons
What is an ionic bond?
It tastes bitter, feels slippery, and turns red litmus paper blue
What is a base?
Rutherford predicted that an atom has a dense core called...
What is a(n) nucleus?
A one-or two-letter abbreviation for the element
What is a chemical symbol?
Another way to show the number of valence electrons in an element
What is an electron dot diagram?
A strong glue that is used to bind objects together, to connect skin after surgery, and to reveal fingerprints to help solve a crime
What is a component?
"Wear away"
What is corrosive?