periodic table
what is the first element in the periodic table
hydrogen
What’s the smallest thing
Atom
what is all matter in the universe made of
atom
how much ion charge does group one has
1+
how many shells has calcium
4
how much elements are in the periodic table
118
what does thomsom descober
electron
where are they found
everywhere
Water, plants, animals, sand, clouds, and air
what group is alkali metals are
group 1
what element is if it has only two protons
helium
what element has 79 electrons
gold
when was the rutherford model created
1911
which particles in an atom are charge
protons
whats the difference between alkaline metals and alkaline
alkali refers to water-soluble bases and alkaline is a broader term encompassing any substance with a pH greater than 7.
if it has 12 protons how much shells should it have
3
what element has 22 netrons
argon
What‘s a covalent bond
When it involves shared pairs of electron between atoms
whats the difference between an atom and a molecule
An atom is the smallest unit of matter but still has all of the properties of its element, whereas a molecule is a structure that contains multiple atoms bonded together.
how much charges does noble gases has
0 charges
do electrons orbit in fixed paths
Yes
how many groups are in the periodic table
18
How will you describe the Bohr model
electrons rotate in fixed orbits around the nucleus.
what is the difference between aluminium and coppe
the number of protons in the nucleus
how is it called the group that has -1 charges
halogens
if it has two full shells how much protons does it have
10