Vocabulary
Anything that has mass and takes up space
Matter
the basic unit of an element. All matter is made up of this
atom
name the elements that make water
hydrogen and oxygen
What is the molecule make-up for carbon dioxide?
CO2
two or more atoms bonded together
molecule
a subatomic particle that has no charge and is located in the center of the atom
neutron
name the elements that make carbon dioxide
carbon and oxygen
Elements in the periodic table are arranged from left to right and top to bottom in order of what?
Their increasing atomic number (the number of protons in an atom's nucleus)
a positive charge subatomic particle located in the nucleus (center of the atom)
proton
subatomic particle that has an negative charge outside of the center of an atom
electron
name the elements that make table salt
sodium and chlorine
How many elements did the original chart have?
How many are there today?
60 originally
118 today
a chart of all known elements that scientist refer to when working with atoms and molecules
periodic table of elements
Who is given credit for designing the periodic table of elements?
Dimitri Mendeleev
What is the molecule make-up for water?
H2O
Name an element?
teacher will determine if correct
where are the proton and neutrons clump together in the center to form this in the atom
nucleus
Name the subatomic particles of an atom?
proton
neutron
electron
nucleus
What is the molecule make-up for table salt?
NaCl
Name a molecule?
teacher will determine if correct