The atomic number is the number of protons that the element has.
The atomic number of an atom tells you the number of protons in the nucleus of the atom.
An elements atomic number is the amount of protons and electrons in the nucleus of the atom.
It also tells us the number of the element on the Periodic Table of elements.
the number of protons in an atoms nucleus
Atomic number = Number of protons
The atomic number is the number of protons in the atom. In the case of a neutral atom (as opposed to an ion), the atomic number is also equal to the total number of electrons.
the actual number of atoms in a molecule
The atomic number of an elemnt tells you how many protons are in the nucleus and therefore how many electrons thare are in a neutral atom. The mass number is the toal of protons and neutrons.
The atomic number is the count of how many protons an atom has in its nucleus (and therefor also the count of how many electrons the neutral atom possesses). The atomic number us unique for each element and positions the element in the periodic table. The element with atomic number 39 is Yttrium (Y).
235 (mass number) - 92 (number of protons) = 143 (number of neutrons)
The atomic number is the number of protons in the nucleus.The Atomic Number of an element helps us to locate that particuarler element on the Periodic Table of Elements.
The atomic number is the number of protons in the nucleus.The Atomic Number of an element helps us to locate that particuarler element on the Periodic Table of Elements.
up there
Atomic number, being a characteristic property (property that is diff. for each element), it identifies the element, For instance, Oxygen has an atomic number of 8, and it's the only one that has that atomic number, same with any other element, except that no other element has an atomic # of 8. No two elements can share an atomic number.
Calcium is a metal element. Atomic number of it is 20.
the # of protons
Atomic number, being a characteristic property (property that is diff. for each element), it identifies the element, For instance, Oxygen has an atomic number of 8, and it's the only one that has that atomic number, same with any other element, except that no other element has an atomic # of 8. No two elements can share an atomic number.
For elements it's the atomic number not the "Period Number." This number tells you how many protons a single atom of that element has in its nucleus. The "period number" is a dimensionless quantity used in fluid dynamics.
The periodic table is in order of atomic mass
it tells us that the number is equal to the number of protons plus the number of nuetrons in the nucleus of an atom
#1 ; Atomic Number (position in the Periodic Table. #2 ' The Atomic Mass #3 ; The number of protons and electrons (Same as Atomic Number) #4 ; The groups and periods of elements. #5 ; The Physical state ( solid, liquid , or gas).
The nitrogen has 7 protons. your welcome!