Hydrogen has atomic number 1 whereas helium's is 2.
The element with the greater atomic number will have a greater atomic mass. Atomic mass is the sum of the protons and neutrons in an atom's nucleus, and since the number of protons increases with atomic number, so does the atomic mass.
#93 Neptunium See also the periodic table at the link below.
The atomic number of helium (He) is 2. The atomic weight of He is 4.002602 grams per mole.
The mass number is always greater than or equal to the atomic number. Beyond that it's not really possible to say.
Mass number = number of protons + number of neutrons in an atom
Hydrogens atomic number is #1.
Hydrogen is a non metal element. Atomic mass number of it is 12.
Hydrogen is a gas element. atomic number of it is 1.
A nucleus of a hydrogen atom contains a single proton; therefore, the atomic number of hydrogen is 1.
Hydrogen is a chemical element with the symbol H and atomic number 1.
Yes
The element with the greater atomic number will have a greater atomic mass. Atomic mass is the sum of the protons and neutrons in an atom's nucleus, and since the number of protons increases with atomic number, so does the atomic mass.
#93 Neptunium See also the periodic table at the link below.
Chromium (Cr), which has an atmoic number of 24. Beryllium has an atomic number of 4, so 4*6=24, which is Chromium.
Atomic no.=no. of protons Atomic Mass=no. of protons+no. of neutrons Hence, atomic mass is greater
Atomic no.=no. of protons Atomic mass=no. of protons+no. of neutrons Hence, atomic mass is greater
For the element Helium is its scientific name. For the bare nucleolus it is know as an alpha particle.