its tell you the atomics mass that occurs
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 number of the protons in the nucleus of a chemical element is equivalent to the atomic number; the atomic number define the position of this element in the periodic table (group, period). And from these we can suppose the chemical properties of this element.
Tells you where this element resides in the period table. tell you which group,,metallic , gas, or liquid.
The atomic number represents the number of protons. The atomic mass represents the number of protons + neutrons.
It tells you the number of cations in the outer energy level of the element's atomic mass
To the right!
The atomic number of the Periodic Table element Period is 92.
The second element in Period 3 is Magnesium, with an atomic number of 12.
Atomic number = Number of protons
It is a period 3 element.
The atomic number tells you the number of protons in the nucleus of that element.
The period number of an element is the row in which it appears.