Atomic number is about protons. It symbolises the protons an atom has.
The atomic number is equal to the number of protons in the nucleus of an atom.
Yes it does.
You would subtract the atomic number from the mass number.
The atomic number of Argon is 18. So 30 of them the Atomic Number would be 540.
The number of protons in the nucleus of an atom
The number 17 in 35Cl represents the atomic mass of chlorine, which is the sum of protons and neutrons in the nucleus. Since the atomic number (number of protons) is sufficient to uniquely identify an element, the number 17 is not needed to describe chlorine.
The atomic number is equal to the number of protons in the nucleus of an atom.
18
The number of protons in the nucleus.
Yes it does.
No. Atomic number is always a whole number. This would be the atomic mass.
The atomic number is the number of protons in an atom. If an atom is not ionized, the number of electrons must be the same as the number of protons.
You would subtract the atomic number from the mass number.
Describe the reactivity of halogens
The atomic number of Argon is 18. So 30 of them the Atomic Number would be 540.
Describe the reactivity of halogens
The number of protons in the nucleus of an atom