Atoms
The number given of the combination of proton mass and neutron mass in an atom.
Atomic mass?
The elements that are malleable and ductile
Metals
The number of atoms found in H2O
3 atoms
The most reactive metal group.
Group 1
The law that states that the mass of the reactants has the equal the mass of the products.
The law of conservation of mass
The identity of an atom.
Protons
The rows in the periodic table are called..
periods
A substance that has changed their state of matter or dissolved has undergone a..
physical change
The most reactive nonmetal group.
Group 17
All the elements common in organic compounds.
Carbon, hydrogen, oxygen, phosphorus, nitrogen and sulfur?
The charges of a proton, neutron and electron (in order).
Positive, neutral and negative
The elements that have the same chemical properties and reactivity are found in the same...
Groups
A substance that has increased temperature and formed a precipitate as undergone a..
chemical change
The small number that follows an element or a compound.
Subscript
The charge of an atoms nucleus is always..
Positive
What three characteristics do groups have in common?
Valence electrons, chemical properties and reactivity
The parts of a chemical equation
reactants, arrow and products?
An element that has lost or gained electrons.
Ion
The number of elements found in CoH3OOCH.
4
When an atom bonds with another atom these are shared or given up
Valence electrons
The two most reactive groups in the periodic table that react together. (names)
Alkali metals(1) and Halogens(17)
If an equation is unbalanced, this number can be added to balance the equation..
coefficient
An element that has equal number of protons and electrons has now lost 2 protons. That elements charge is now (with number)
-2
Number of atoms found in 3Al2(PO4)3
51 atoms