Atoms
what are atoms
what are the different types of elements
metals, non-metals, metalloids
what do the atomic numbers represent
the number of protons in the nucleus
where do you find metals on the periodic table
metals are to the left of the stairs
who came up with the gold foil experiment
How many Valence electrons do atoms need to be stable?
8 valence electrons
what elements make up the stairs
metalloids
what does the atomic symbol represent
how to identify an specific element
where do you find non-metals on the periodic table
to the right of the stairs
who came up with the Bohr model
Niels Bohr
Are two atoms of the same element the same
yes
are ionic bonds or covalent bonds stronger
ionic bonds
why do we use Atomic symbols?
it allows us to write the chemical formula easily
what is the name of this category?
Element
who came up with plum pudding experiment
Joseph John Thomson(JJ Thomson)
The positive particles of an atom are?
protons
what group of the periodic table is gold in?
group 11
what is the atomic symbol of Platinum?
Pt
How many Electrons does Chlorine have?
17
who came up with the first periodic table?
Dmitri Mendeleev
what particles on an atom don't have a charge?
Neutrons
how do elements combine together?
they make compounds
Au is the Atomic symbol of what element?
gold
how many protons does silver have?
47
who came up with coulomb's law?
Joseph John Thomson (JJ thomson)