Indian forum: Education - Which is the only element whose atoms have no neutron ?
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31 Jul 2014 11:26

Which is the only element whose atoms have no
neutron ?
(A) Helium
(B) Oxygen
(C) Nitogen
(D) Hydrogen

31 Jul 2014 16:21
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31 Jul 2014 17:02

seriously I don't know

31 Jul 2014 17:04

All the above

31 Jul 2014 18:34

hydrogen..

31 Jul 2014 18:35

H2

31 Jul 2014 20:01
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31 Jul 2014 20:02
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31 Jul 2014 20:02
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31 Jul 2014 21:00

[D] Hydrogen

2 Aug 2014 15:40

Hydrogen(protium)

15 Aug 2014 12:17

All the above

12 Oct 2014 02:26
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12 Oct 2014 03:42

Oxygen

12 Oct 2014 03:45

Heliam

12 Oct 2014 03:45

Heliam

12 Oct 2014 04:48

hydrogen

Edited by Lemtur / 12 Oct 2014 04:50
22 Jul 2015 18:34

That is an interesting question. The atomic number of an atom is the number of protons that atom has. Almost every atom is made of three different things: protons, neutrons, and electrons. Protons and neutrons are in the middle of an atom and form what is called a nucleus. Electrons surround the nucleus. A nucleus and its electrons make up an atom. The nucleus is very small compared to the space of the whole atom. If the nucleus were an apple, the whole atom (the nucleus and electrons) would be the size of a football stadium!
A hydrogen atom is made of one proton and one electron. Because hydrogen has one proton, it has an atomic number of one. It is the only element whose atoms don't have any neutrons. Helium has an atomic number of two; helium has two protons, two neutrons, and two electrons

23 Jul 2015 13:05
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23 Jul 2015 14:26

Quote by Hitu231
Quote by Harshika10
That is an interesting question. The atomic number of an atom is the number of protons that atom has. Almost every atom is made of three different things: protons, neutrons, and electrons. Protons and neutrons are in the middle of an atom and form what is called a nucleus. Electrons surround the nucleus. A nucleus and its electrons make up an atom. The nucleus is very small compared to the space of the whole atom. If the nucleus were an apple, the whole atom (the nucleus and electrons) would be the size of a football stadium!
A hydrogen atom is made of one proton and one electron. Because hydrogen has one proton, it has an atomic number of one. It is the only element whose atoms don't have any neutrons. Helium has an atomic number of two; helium has two protons, two neutrons, and two electrons

yes u r absolutely right

thankyou dear Hitu