What number tells you the number of protons and electrons?
Atomic Number
What is the definition atomic mass
the mass of a single atom of a chemical element
How many electrons fit on the first energy level?
2
What particle has a positive charge?
Proton
What is the definition of nucleus
positively charged dense center of an atom
How many electrons fit on the third energy level?
18
What is the definition alloy
a mixture containing two or more metallic elements
Figure out the number of electrons on each energy level for NEON
2) 8)
What is Definition of conductivity
the property of transmitting heat, electricity, or sound
What does the term 'valence electrons' mean? (2 things)
number of electrons on outermost shell, tells how reactive an element is
What is Definition of halogen
any of five related nonmetallic elements that are all monovalent and readily form negative ions
What is an electron cloud?
negative charge surrounding an atomic nucleus that is associated with an atomic orbital