Parts of an Atom
Atoms are made up of three subatomic particles, what are they?
Protons, neutrons, and electrons
An ____________ is a substance made up of only one type of atom.
Element
The electrons surrounding an atom are located in regions around the nucleus called ________________
Energy levels
What is the key word for covalent bonds.
Sharing
What is the action of a covalent bond?
give and take of electrons
What is the electric charge of a proton?
Positive
The atomic number of an atom is equal to the number of _____________ in the nucleus.
Protons
Where is the first energy level located?
Closest to the nucleus
What two things must atoms have for a covalent bond to occur?
Strong attraction, unfilled outer energy levels
When an atom loses or gains an electron, it is called an ___________
Ion
What is the electric charge of an electron?
Negative
Atoms of the same element with different numbers of neutrons are called _____________ of that element.
Isotopes
What is the number of electrons that can go in the first two energy levels. Separate them into their energy levels
2, 8
What is the attraction that brings covalent bonds together?
The attraction between valence electrons of one atom to the nucleus or the protons of another atom.
A ______________ is a positive ion, and a ____________ is an negative ion.
Cation, anion
What is the electric charge of a neutron?
It has no charge, or neutral.
Are the elements in columns or rows are similar with their reactions?
Columns
Atoms in the same column on the periodic table have the same number of _____________________________.
valence electrons
Atoms will covalently bond until when?
Their outer energy levels are full
Why do atoms in an ionic bond stay together?
What is the place where the protons and neutrons are found? Where are the electrons found?
Nucleus, Energy levels
The atomic mass of an element is the__________________________________________________
average mass of the different isotopes of the element
What two things do the valence electrons tell us?
Name 2 covalent bonds other than H2, O2, H20.
CH4, CO2
Draw the ionic bond of Sodium Chloride, complete with energy levels and arrows for electrons.
Check to see if complete