Help me with chemistry!!! Please !!! About the 3 isotopes of hydrogen???

Question

I have a test tommorow but I don't have an idea what are the 3 isotopes of hydrogen and how will i get the mass number, number of proton, number of neutrons, number of electron, and the atomic number of it. My test is like a chart, it is like a "fill in the blanks" chart. Please answer my question now please! I hopoe you can answer me fast ... THANKS !!!

Answer 1

Hydrogen:
1 proton, 0 neutrons, 1 electron

Deuterium:
1 proton, 1 neutron, 1 electron

Tritium:
1 proton, 2 neutrons, 1 electron

Atomic Number = number of protons
Atomic Mass = number of protons + number of neutrons

This is now easy. Your chart is pretty well filled out.

Answer 2

if you call it hydrogen, then you must keep it in mind what makes it hydrogen.

ALL elements are defined by number of protons. hydrogen atoms always have 1 proton regardless what the isotope is.

If you call it oxygen, then it must have 8 protons.

For the isotopes of hydrogen, number of proton is always 1, this is called the atomic number. you can get it from the periodic table.

Isotope means it is the same element, but number of neutrons are different. These number need to be given or calculated as following:

Hydrogen has 3 isotopes, 1H, 2H, and 3H.
1H = 1 proton, 0 neutron, mass number = 1
2H = 1 proton, 1 neutron, mass number = 2
3H = 1 proton, 2 neutron, mass number = 3

mass number = # proton + # neutron

number of electrons = number of protons
because atoms are neutral, negatively charged electrons must cancel the charge of positively charged protons.
So, for hydrogen, ALL isotopes have 1 electron only.

Answer 3

All 1 proton, 1 electron. Hydrogen 0 neutrons, Deuterium = 1 neutron, Tritium 2 Neutrons. The table at http://nautilus.fis.uc.pt/st2.5/scenes-e/elem/e00193.html tells you more than you probably need.

Answer 4

how did you know your exam question when your exam is tomorrow?
mass number is the number of proton and neutron. the number of electron does not count to the mass number as they are very small.
number of electron must be the same as the number of protons. so the charges will neutralize. the number of proton is the atomic number for any substance. if the number of proton changes, the substance or element will change. it will no longer be hidrogen or H. got it?

Answer 5

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Answer 6

3 isotopes of hydrogen: hydrogen, deuterium and tritium
Hydrogen has mass number of 1 and proton number 1 (mass number is the number at the top of the symbol, proton number/ atomic number the one below). Mass number= number of neutrons and protons. Number of electrons always = number of protons in unionised element.

Hydrogen
mass number = 1
no of protons / atomic number = 1
no of electrons =1
no of neutrons = 0

Deuterium
mass number = 2
no of protons /atomic number = 1
no of electrons = 1
no of neutrons = 1

Tritium
mass number = 3
no of protons/atomic number = 1
no of electrons = 1
no of neutrons =2

Just remember if they are of the same elements (isotopes of the same element), they have the same atomic number/proton number. The only thing that differs is their number of neutrons.

Good luck :)

Answer 7

The previous folks have pretty well worked this question over. The only thing to add is that H1 and H2 are stable, but H3 is radioactive.

Answer 8

how to explain here???