Homework Help

How many neutrons, protons, and electrons are in Hydrogen?

user profile pic

drummerbsa | Student, Grade 10 | eNotes Newbie

Posted September 22, 2009 at 9:05 PM via web

dislike 2 like

How many neutrons, protons, and electrons are in Hydrogen?

8 Answers | Add Yours

user profile pic

krishna-agrawala | College Teacher | (Level 3) Valedictorian

Posted September 22, 2009 at 10:09 PM (Answer #1)

dislike 3 like

A Hydrogen atom has one proton and one proton in it. There are no neutron in hydrogen atom. As a matter of fact, hydrogen is the only element whose atom does not have a neutron in it.

Hydrogen does have some isotopes with atoms that contain one or more neutrons in its atoms. The atom of most most common isotope of hydrogen called protium, which is really the common hydrogen, contains no neutron. The atom of a second isotope of hydrogen called deuterium or heavy oxygen contains 1 proton and 1 neutron. This isotope constitutes about 1 part out of 4000 to 6000 parts of normal oxygen.The atom of another isotope of hydrogen called tritium has 1 proton and 2 neutron. Tritium is a radioactive material and is used in making oh hydrogen bomb.

user profile pic

sandali | Student, Grade 11 | (Level 1) Salutatorian

Posted September 27, 2009 at 11:33 PM (Answer #2)

dislike 1 like

1 electron, 1 proton and no neutrons!!! Anyway, hydrogen has isotopes (which means same numbers of protons but different numbers of neutrons).....Hope the answer u hav already got is the  best!!!

user profile pic

Yojana_Thapa | Student, Grade 10 | (Level 1) Valedictorian

Posted January 27, 2014 at 12:51 AM (Answer #4)

dislike 0 like

In Hydrogen

Neutrons= 0

Protons= 1

Electrons= 1

user profile pic

Jyotsana | Student, Grade 10 | (Level 1) Valedictorian

Posted February 22, 2014 at 11:42 PM (Answer #5)

dislike 0 like

Hydrogen have 1 electrons,1 protons and 0 neutrons.

user profile pic

jess1999 | TA , Grade 9 | (Level 1) Valedictorian

Posted June 17, 2014 at 5:56 AM (Answer #6)

dislike 0 like

In a Hydrogen atom there is 1 electron , 1 proton , but there is not any neutrons .

Number of energy levels that a Hydrogen atom have is only 1 .

There are isotopes of Hydrogen that do contain neutrons. For example, deuterium has one neutron and tritium has 2 neutrons.

user profile pic

parama9000 | Student, Grade 11 | (Level 1) Valedictorian

Posted July 31, 2014 at 1:49 PM (Answer #7)

dislike 0 like

A hydrogen atom contains 1 electron, 1 proton, and no neutrons based on the Periodic Table. The isotopes of the hydrogen atoms however, do contain neutrons. Deuterium as one neutron and tritium has two neutrons, based on the definition that an isotope an element with same number of protons but different number of neutrons.

user profile pic

strwbrry16 | TA , Grade 5 | (Level 1) Valedictorian

Posted October 21, 2014 at 11:39 AM (Answer #8)

dislike 0 like

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.

user profile pic

ibrahimrehan | TA , Grade 9 | (Level 2) Honors

Posted October 22, 2014 at 7:41 PM (Answer #9)

dislike 0 like

Hydrogen has one proton and one electron in its nucleus hence it is the only element in the periodic table which has  no neutrons in its nucleus . Hence , its atomic no. is one and its mass no. is also one. Hydrogen exists as a gas at room temperature .

Join to answer this question

Join a community of thousands of dedicated teachers and students.

Join eNotes