An element with 1 proton is hydrogen. An Isotope called Tritium has one Proton and two Neutrons. Hope this helps.
hydrogen
Their are only 2 shells in the hydrogen atom.
For a given element, there is only one type of atom. It is the number of protons. However, A given element my exhibit different isotopes. This is where the atomic mass is different because of the different number of neutrons, but the number of protons remains the same. For ,say Hydrogen , It only contain 1 proton ,but has three different isotopes. #1 ; protium ; 1 proton , no neutrons, 1 electron ( The commonest isotope) #2 ; deuterium ; 1 proton , 1 neutron, 1 electron ( Far less common) #3 ; tritium ; 1 proton, 2 neutrons, 1 electron ( Very rare and radio-active). However, notice in all three cases the number or protons remains the same, so it remains the same atom. For a different element there will be a different number of protons, so it is a different atom. e.g. Helium; 2 protons, 2 neutrons, and 2 electrons. Notice it has 2 neutrons , like tritium, but this does not make it the same element with different atoms.
Elements have a certain number of protons(+), neutrons(0) and electrons(-). The atomic number shows the number of protons and electrons in the element (has to have the same number of each to stay stable). The atomic mass shows the number of neutrons. For example, Hydrogen has an atomic mass of ~1.01 (and an atomic number of 1). That means that it has 1 electron and 1 proton but no neutron (1 proton+0 neutrons=1). Helium has an atomic mass of ~4.00 (and an atomic number of 2). That means that it has 2 electrons, 2 protons and 2 neutrons (2 protons+2 neutrons=4). Hope you can understand. :S
The definitive answer is 'Isotopes have a different numbers of neutrons'. Taking hydrogen as an example. Iy has three isotopes. #1 ; protium ; 1 proto and 1 electron 0 neutrons (The commonest isotope) #2 ; deuterium ; 1 proton , 1 electrons 1 neutron. (Used to make ;heavy water') #3 ; tritium ; 1 proton , 1 electron, and 2(TWO) neutrons. (Very rare and radio-active).
A hydrogen atom has 1 proton and 1 electron regardless of the isotope.Standard hydrogen(protium) has zero neutrons.The deuterium isotope has 1 neutron and the tritium (very radioactive) has 2 neutrons.
For the same element the number of protons and electrons remains unaltered. Howerm for that same element the number of neutrons can vary., leading to different atomic masses. Taking hydrogen as an example. It has three isotopes. #1 ; protium ; 1 proton , 0 neutrons (Atomic Mass ; 1 + 0 = 1 ) #2 ; deuterium ; 1 proton , 1 neutron ( Atomic mass ; 1 + 1 = 2) #3 ; tritium ; 1 proton, 2 neutrons ( Atomic Mass ; 1 + 2 = 3) Notice for each isotope of hydrogen there is only ONE proton. However, for each different isotope of hydrogen there is a different number of neutrons. The Atomic Mass is the sum of the protons and neutrons). #4 ; Helium(He) ; 2 protons, 2 neutrons ( atomic mass 2 + 2 = 4 ). For comparison helium has 2(TWO) protons and 2 neutrons, but it is an entirely different element, because it has a different number of protons.
Tritium (Hydrogen-3, H3, T) has 1 Proton, 2 Neutrons, and 1 Electron.
All atoms of a specific element have the same number of protons in their nucleus, but the number of neutrons in the nucleus may vary these are isotopes of that element.Hydrogen has several possible isotopes, only the first three of these are commonly referred to:hydrogen or protium or hydrogen-1, 1 proton 0 neutrons, stabledeuterium or hydrogen-2, 1 proton 1 neutron, stabletritium or hydrogen-3, 1 proton 2 neutrons, radioactive halflife 12.26 yearshydrogen-4, 1 proton 3 neutrons, radioactive halflife about 139 yoctosecondshydrogen-5, 1 proton 4 neutrons, radioactive halflife about 910 yoctosecondshydrogen-6, 1 proton 5 neutrons, radioactive halflife 290 yoctosecondshydrogen-7, 1 proton 6 neutrons, radioactive halflife 23 yoctosecondsetc.
Hydrogen - 1 proton, 1 electron Deuterium - 1 proton, 1 neutron 1 electron Tritium - 1 proton, 2 neutrons, 1 electron
Their are only 2 shells in the hydrogen atom.
Normal Hydrogen has 1 proton Deuterium has 1 proton and 1 neutron Tritium has 1 proton and 2 neutrons.
For a given element, there is only one type of atom. It is the number of protons. However, A given element my exhibit different isotopes. This is where the atomic mass is different because of the different number of neutrons, but the number of protons remains the same. For ,say Hydrogen , It only contain 1 proton ,but has three different isotopes. #1 ; protium ; 1 proton , no neutrons, 1 electron ( The commonest isotope) #2 ; deuterium ; 1 proton , 1 neutron, 1 electron ( Far less common) #3 ; tritium ; 1 proton, 2 neutrons, 1 electron ( Very rare and radio-active). However, notice in all three cases the number or protons remains the same, so it remains the same atom. For a different element there will be a different number of protons, so it is a different atom. e.g. Helium; 2 protons, 2 neutrons, and 2 electrons. Notice it has 2 neutrons , like tritium, but this does not make it the same element with different atoms.
Elements have a certain number of protons(+), neutrons(0) and electrons(-). The atomic number shows the number of protons and electrons in the element (has to have the same number of each to stay stable). The atomic mass shows the number of neutrons. For example, Hydrogen has an atomic mass of ~1.01 (and an atomic number of 1). That means that it has 1 electron and 1 proton but no neutron (1 proton+0 neutrons=1). Helium has an atomic mass of ~4.00 (and an atomic number of 2). That means that it has 2 electrons, 2 protons and 2 neutrons (2 protons+2 neutrons=4). Hope you can understand. :S
The definitive answer is 'Isotopes have a different numbers of neutrons'. Taking hydrogen as an example. Iy has three isotopes. #1 ; protium ; 1 proto and 1 electron 0 neutrons (The commonest isotope) #2 ; deuterium ; 1 proton , 1 electrons 1 neutron. (Used to make ;heavy water') #3 ; tritium ; 1 proton , 1 electron, and 2(TWO) neutrons. (Very rare and radio-active).
A hydrogen atom has 1 proton and 1 electron regardless of the isotope.Standard hydrogen(protium) has zero neutrons.The deuterium isotope has 1 neutron and the tritium (very radioactive) has 2 neutrons.
They differ in their number of neutrons.Atoms of all isotopes of carbon contain 6 protons and 6 electrons.Carbon-12 is the most common isotope.Isotopes of an element differ because each isotope has a different neutrons, but the same amount of protons.Example: H-1H-2H-1 has 1 neutron, 1 proton, and 1 electronH-2 ,however, has 2 neutrons, 1 proton, and 1 electron.
An Isotope of hydrogen called Deutrium.