The atomic number of an atom tells you how many protons are present in the nucleus. So there are 50 in the element.
By the way, an element with 50 protons and 70 neutrons (120-50) is a stable form of Tin.
An atom with the atomic number 40 and mass of 80 would have both 40 protons and 40 neutrons, since they each make up for half of the mass. Electrons have hardly any mass, so they are usually counted as .01 (80.8).
there were 48 protons and electrons,72 neutrons
There are 48 protons and 48 electrons. It has 72 neutrons.
48 protons and electrons and 72 nuetrons
48 protons and electrons and 78 neutrons
Tin
The number of protons determines the element, and is the same as its atomic number.
The number of protons is equal to the atomic number of a chemical element.
Subatomic particles are protons, neutrons and electrons; the number of protons and electrons (in the neutral state) are equal to the atomic number of an element.
Atomic nuclei have two kinds of subatomic particles, which are protons and neutrons.
Number of protons in the nucleus is the atomic number.
The protons and neutrons.
The atomic number is 5becuse it is in the nuclise
The number of protons determines the element, and is the same as its atomic number.
Atomic, and subatomic particles go to different atomic, and subatomic particles.
The number of protons is equal to the atomic number of a chemical element.
False; the atomic number is the total number if protons in the nucleus only.
Both Democritus' and John Dalton's atomic models had no subatomic particles.
These particles are protons and neutrons; but to be correct the mass of electrons must be added.
The two subatomic particles are protons and electrons. They match the atomic number on periodic table.
Subatomic particles are protons, neutrons and electrons; the number of protons and electrons (in the neutral state) are equal to the atomic number of an element.
Atomic nuclei have two kinds of subatomic particles, which are protons and neutrons.
protons and neutrons are subatomic particles and adding the two amounts together gives you the atomic mass unit