Deuterium, an isotope of hydrogen, has an Atomic Mass of 2 since it has a neutron as well as a proton in the nucleas. Hydrogen oxide, H20 is known as water - deuterium oxide is known as heavy water.
The atomic number of Helium is 2.
The atomic number of helium is 2. It has 2 protons in its nucleus, which defines its atomic number.
The atomic number of the element refers to the number of protons of an atom: all atoms of an element have this number of protons. A neutral atom of the element will have the same number of electrons.
Berylium is a non metal element. Atomic number of it is 4.
Argon is a gas element. atomic number of it is 18.
Aluminium is a metal element. atomic number of it is 2.
The atomic number of Helium is 2.
Helium is a gas element. atomic number of it is 2.
The atomic number of helium is 2. It has 2 protons in its nucleus, which defines its atomic number.
Atomic number 2 corresponds to the element Helium. Helium has 2 protons in its nucleus, making it the second element on the periodic table. It is a colorless, odorless gas and is the second most abundant element in the universe.
The atomic number of an Element refers to it's position in The Periodic Table. The first element (Hydrogen - H) has the atomic number 1. The second element (Helium - He) has the atomic number 2. The fifty-second element (Tellurium - Te) has the atomic number 52. And so on.
The element is Helium witht he atomic number, 2.
2 He 4.00260 has several components. The first number, 2, is the atomic number of the element. This equates to the number of protons in the element. The second component is He, which is the atomic symbol of the element. Finally, 4.00260 is the atomic mass of the element. In this case, the element described is helium.
The average number of neutrons that a specific element has is equivilent to the element's atomic mass minus the that elements atomic number. For example Helium has 2 neutrons because its atomic mass (4) minus the atomic number (2) is 2.
Calcium has the atomic number 20.
Helium is a gas element. atomic number of it is 2.
2