periodic table
what does C stand for in the periodic table
Carbon
what is a atom
a unit of chemistry
how many neutrons is in He
2
is He a metal or a non metals
none
what is ion
a atom with a positive or negative charge
what number is O in the peridic table
8
what is in the atom
proton nutrons and electron
what is in H2O
2 hydrogyen 1 oxogen
what element has no usage
nobelium
Americium.
Californium.
Promethium.
Protactinium.
nobelium
how does a atom get a positive charge
incress of protons
is H2O in the periodic table
no
Does an electron in an atom move
it does
what does Na stand for
sodium
how many chemicals have the letter n in the symbol
10
what is the difference between ions and isotopes
one is the change of nutrons the other is the change of protons and electrons
what is the most dangerous element
polonium
what happens if there is more electrons then protons
it will have a negative charge
what is the diffrence between a atom and a element
a atom is only a part of the element
what is the 4 group names
alcoline metals
alcoline earth metals
halogens
noble gasses
how many colloms are in the periodic table
18
how many metals are in the periodic table
70
Are two atoms of the same element identical
no
what symbol does radon have
Rn
say unununium
wrong
how many elements or there in the table
118