/////CHEMISTRY: How To Tell How Many Protons, Neutrons, Electrons & What Charge By Looking At Periodic Table?

Question

How can you tell how many Protons, Electrons, Neutrons, and what charge and element is, by looking at it on the periodic table?
I'm awful at Chemistry ;(

So protons and electrons are the element number?
And neutrons are the atomic number minus the number of protons?

I think I am beginning to get it, I have to fill out a chart with this information number, and I saw that the elements with a -2 charge have two less protons, and the ones with at +1 charge are +1 in protons, and that seems to make sense.
Chemistry is not my subject!

Answer 1

So you have your element

16
O
8


To find the number of protons and electrons read off the bottom number (The Atomic Number).
To find the number of neutrons subtract the number of protons by the atomic mass number (The Top Number)

So in this case
N=8
P=8
E=8

These numbers will not always be the same though. Any other questions just message me, I'd be happy to help you :).


*EDIT- Yeah you got it

Answer 2

First of all, pick a periodic table. There are some of them at the sources below.

The number of protons of an atom is called the atomic number; usually is the one just above its abbreviation (called atomic symbol). Example: carbon (C) has atomic number 6 (second line, to the right). The number of electrons is always the same of the number of protons, for any given atom.

The number of neutrons is somewhat harder: many types of atoms have several varieties (called isotopes), with different quantities of neutrons. Since neutrons weigh about the same as protons, different isotopes have different masses; the average mass of an atom (all isotopes counted, averaged by relative frequence in nature) is given below its atomic symbol.

Atoms in the groups 1, 2, and 13 to 18 (two leftmost columns, six rightmost columns), have fixed charge when in chemical bonds; respectively, +1, +2, +3, +/-4, -3, -2, -1, 0. There are exceptions; please ask your teacher. For the other elements, some can have variable charges. Iron (Fe) can be +2 or +3, for instance.

Answer 3

ok it's very simple: look at the periodic table and specifically look at the first element H. you'll see "1" above the H and a number underneath it right? the number above it repesent the atomic number (protons) and the number underneath it is the atomic weight.protons are the numbers on top of the elemt name for for H it's 1 for He its 2. Neutron is number underneath - number on top. so for Sodium or Na the number of protons is 11 the number of neutrons is 23-11= 12 neutrons. Electrons are the same as protons. so for H it's a -1 for electron (which is always negative) and 1 proton.

Hope this helps

Answer 4

it looks like you are understanding it, but you may want to view it a little differently. Instead of seeing it as 2 less protons for a -2 charge, it actually has 2 more electrons. Protons stay the same but electrons are what changes the charge. sort of weird, the more electrons compared to protons, the more negaitive the charge is.

Answer 5

charge on the ion - remember that all want to have a full valence like the nobel gases (all the way to the right). you just need to figure out if it's easier for them to gain or lose electrons to get there.

protons and electrons- element #

neutrons - atomic mass-# protons