Vocabulary I
the abbreviation of an elements name
element symbol
The basic particle from which all elements are made.
atom
What type of charge does an electron have?
negative
Explain why Oxygen and Beryllium might make a chemical bond.
there valence electrons total the magic number 8
In a salt water solution, what is the solute?
salt
The number of protons in an atom which uniquely identifies an element
atomic number
A molecule composed of one kind of atom; cannot be broken into simpler units by chemical reactions.
element
What type of charge does a proton have?
positive
What period would I find Gallium (Ga)
4
Lemonade that is too sugary would be called ______
saturated
What electrons in the outermost energy level called....
valence electrons
A combination of two or more substances that are not chemically combined
mixture
What type of charge does a neutron have?
no charge
How neutrons are in Phosphorus?
16
Water is known as the Universal ________
solvent
total weight of protons and neutrons
atomic mass
the substance that is dissolved
solute
What two subatomic particles can be found in the nucleus?
protons and neutrons
What do the roman numerals at the top of the periodic table tell us?
What do you call a homogeneous mixture of two or more substances?
solution
A homogeneous mixture of two or more substances
solution
A mixture that is not uniform in composition; components are not evenly distributed throughout the mixture
heterogeneous mixture
The current model of the atom shows electrons in a cloud surrounding the nucleus. How does the electron cloud model differ from the Bohr model?
The electron cloud shows a region in which electrons are likely to be found.
How does the electron cloud model differ from the Bohr model?
the electron cloud model just shows a region where the electrons can be found and not energy levels
How do you separate a mixture of salt, sand and nails?
Magnets, water, filtering, boiling