Terms in this set (57)
What is the smallest unit of matter? An atom
What is the central core of an atom Nucleus
called?
,What particle in the nucleus has a Proton
positive charge?
What particle in the nucleus has no Neutron
charge?
What does atomic number The number of protons in the nucleus
represent?
What is atomic mass? The number of protons and neutrons combined
What surrounds the nucleus and Energy levels
contains electrons?
, What is an element? A pure substance made up of only one kind of
atom
Define a molecule. A group of atoms bound together
What is a compound? A substance whose molecules have more than
one kind of atom
What is the purpose of chemical To make atoms more stable
bonds?
What forms when an atom gains or Ions
loses electrons?
What is the smallest unit of matter? An atom
What is the central core of an atom Nucleus
called?
,What particle in the nucleus has a Proton
positive charge?
What particle in the nucleus has no Neutron
charge?
What does atomic number The number of protons in the nucleus
represent?
What is atomic mass? The number of protons and neutrons combined
What surrounds the nucleus and Energy levels
contains electrons?
, What is an element? A pure substance made up of only one kind of
atom
Define a molecule. A group of atoms bound together
What is a compound? A substance whose molecules have more than
one kind of atom
What is the purpose of chemical To make atoms more stable
bonds?
What forms when an atom gains or Ions
loses electrons?
