Since argon is the last element in its period, it is a noble gas. This means that it has a full outer shell of electrons (specifically a full p orbital), and is not very reactive (at all).
Argon, like all of the "noble" gases, has a full electron shell.
periods move from left to right find the element you are looking for and move all the way to the left if it is the third element down it is in period 3
The total number of electron shells in an atom has determines its period grouping.
The period tells us 3 things: # As you go from left to right across each period, the number of protons in the nucleus increases # As you go from left to right across each period, the reactivity of each element decreases (E.g. Sodium is very reactive but argon is very stable as it is a noble gas) ∴ tells us about the reactivity # It tells us the number of shells there are for each element (E.g. Magnesium has 3 shells [2.8.2], ∴it is in the 3rd period)
The groups in the periodic table tell you what each element within them will react with, the number of valance electrons the element has, and what family it is in.
Argon, like all of the "noble" gases, has a full electron shell.
To the right!
its tell you the atomics mass that occurs
periods move from left to right find the element you are looking for and move all the way to the left if it is the third element down it is in period 3
i dont know i was waiting for u to tell me.....
an element of period 6 name has hafnium having atomic no 72 and atomic mass as 178.49
Tells you where this element resides in the period table. tell you which group,,metallic , gas, or liquid.
You tell me.
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.
tell your doctor you don't remember when your last period was.
The total number of electron shells in an atom has determines its period grouping.
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.