States of matter
A state of matter that's molecules are packed tightly together.
What is a solid?
an atom with the same number of protons but differing number of neutrons.
What is an isotope?
a characteristic of an element that can be observed
What is physical poperties?
the column number on the periodic table correlates with this electron
What is valence electron?
When the molecules of a substance start to spread apart and bounce around rather than being packed in tight.
What is heating?
the number on the periodic table that denotes the amount of protons
What is the atomic number?
The property of the atom that is concerned with the chemical makeup or the result of a chemical reaction
What is a Chemical property?
these are elements on the periodic table that have similar properties
What are groups?
a combination of more than one type of substance
What is a mixture?
The number on the periodic table that denotes the number of protons and neutrons in an atom.
What is the atomic weight?
the smallest building block of life
What is an atom
this is when two atoms share valence electrons
What is a covalent bond?
What is a pure substance?
the outermost electron in an atom
What is a valence electron?
more than one element bonded together
What is a compound?
this is the bond between two ions caused by the complete transfer of an electron
What is an ionic bond?
this state of matter is the least dense
What is a gas?
A charged atom
What is an ion?
Sodium ions and chlorine ions bonded together because of the attraction of the opposite charges
What is table salt?
two elements have this in common if they are in the same column