can you explain to me how to get an element's protons, neutrons, and electrons?

Question

My biology teacher doesn't know how to do this, that's what he told me [what a bad biology teacher].
you can give me examples of these elements hydrogen, helium, carbon, oxygen, neon, aluminum, and zinc.
please help me...
thanks.

Answer 1

do your own homework.

Answer 2

You can get all these elements protons, neutrons, and electrons from the periodic table of the elements. Few people can memorize these amounts so this table was made to aid engineers/chemists/biologists/ technical people...Find one that can give you these much details since some of the periodic tables out there now are oversimplified.

From the table check the atomic number and the atomic weight. The atomic number is the amount of protons an element has in its nucleus. To find the amount of neutrons is the difference between the Atomic weight and the atomic number. The number of electrons is equal to the number of protons. Round off the Atomic weight in order to get whole numbers when determining the number of neutrons of an element. The number of electrons must always be equal to the number of protons. Should the electrons be more or less than the proton number then you have the ion of the element.

eg He : from the Periodic Table the Atomic weight = 4.002 and the Atomic Number =2. Thus,

Protons = Electrons = 2
Atomic weight is about 4
Neutrons = Atomic weight - Atomic number
= 4 - 2
Neutrons = 2

You're welcome.

Answer 3

First off you should have a periodic table of elements. Once you have that, look for the whole number on the element's box

example: Hydrogen (H) 1

that whole number is called the atomic number. The atomic number is ALWAYS the same as the element's number of protons. The number of protons is also equal to the number of electrons

example: Hydrogen: atomic number: 1, protons: 1, electrons: 1

As for the elements neutrons you need the mass number, the other number in the box, usually a decimal

example: Hydrogen: 1.008

round that number and subtract the number of protons and you have the element's neutrons!

Answer 4

protons = atomic number = number on top of the block in the periodic table

electrons = protons for a neutral atom

neutrons = mass number - atomic number

Examples:

Hydrogen-1

Mass number = 1
Atomic number = 1

Protons = 1
Neutrons = 0
Electrons = 1

Example:

Zinc-65

Mass number = 65
Atomic number = 30

Protons = 30
Neutrons = 35
Electrons = 30