Helium has a nuclear charge of +2 and 2 electrons in a 1s orbital. Hydrogen has a nuclear charge of +1 and just one electron in a 1s orbital. The extra charge on the nuclees means that the electrons in He are more tightly bound than in hydrogen thuis reflected in the ionization energy of 2372 kJ/mol for He and about 1312 kJ/mol for hydrogen. For helium t the "outer shell" is full, a "stable " configuration.
Helium atom that has two neutrons is more massive than a helium atom that has only one neutron.
The nucleus of the Hydrogen atom has just 1 proton. The nucleus of the Helium atom has 2 protons and 2 neutrons.
Elements differ in the number of protons present in the nucleus. Hydrogen has 1 proton whereas helium has 2 protons.
A neon atom :) ur so stupid:P
The hydrogen nucleus has a single proton. The helium nucleus has two protons and one or two neutrons.
The ground state electron configuration of the hydrogen atom is 1s1, and for helium it is 1s2.
the number of helium and hydrogen atoms is the same
Because an alpha particle is bigger than a helium or hydrogen atom.
Uranium atom is the heaviest.
The nucleus of hydrogen has 1 proton, whereas that of helium has 2 protons.
The nucleus of hydrogen has 1 proton, whereas that of helium has 2 protons.
The hydrogen nucleus has a single proton. The helium nucleus has two protons and one or two neutrons.
The sun uses nuclear fusion to produce light and energy. the process is relatively complicated but simplified it looks something like this. step 1: hydrogen atom + hydrogen atom = deutrerium atom (an isotope of hydrogen (one extra neutron)) + positron + neutrino step 2: Deutrerium atom + hydrogen atom = helium 3 (an isotope of Helium (missing one neutron)) + energy step 3: helium 3 atom + helium 3 atom = helium atom + hydrogen atom + hydrogen atom + energy.
2 hydrogen atoms
The ground state electron configuration of the hydrogen atom is 1s1, and for helium it is 1s2.
the number of helium and hydrogen atoms is the same
No. Helium and Hydrogen are two different elements.
No, it is identical to that of a helium atom.
Because an alpha particle is bigger than a helium or hydrogen atom.
Uranium atom is the heaviest.
When two hydrogen atoms fuse to become one helium atom.