people/elements
( DOUBLE UP ) A Danish scientist that created the model of the atom we use today and built the atomic bombs.
Neils bohr
the center of a atom
the Nucleus
the Thing that Dmitri Mendeleev created.
The periodic table of elements
atoms joining with other atoms are called
molecules
when a atom is completely filled this atom is
Stable
the element that with the letter(s) K
potassium
Have a positive charge and are found in the nucleus.
Protons
the horizontal rows on the periodic table of elements are called
periods.
when atoms join with different types of atoms
chemical change
occurs when atoms share pairs of electrons.
covalent bonding
A Russin guy who invented the periodic table of elements.
has a neutral charge and is found in the nucleus.
neutron
the vertical Collums on the periodic table of elements ARE called
groups
( DOUBLE UP ) chemical changes produce molecules known as
compounds
a atom that gained or lost electrons is called a
ion
the element that starts with the letter(s) He
helium
has a negative charge and travels around the nucleus.
Electrons
the yellow elements on the table are called.
metals
chlorine + sodium = ?
(JUST FOR FUN) the element that has the letter(s) Ti
titanium
the element that starts with the letter(s) Si
silicon
adding the protons and neutrons together to find the
Atomic number
the blue elements on the table are called
non metals
chemical symbols and numbers used to abbreviate the name of the compounds.
chemical formulas
the element that has the letter(s) Fe
iron