With a few exceptions metals are placed in groups 1-13 of the Periodic Table of Mendeleev.
odd numbers
the dimensionless numbers have the definition as that of dimensionless groups, and have all the properties which dimensionless groups have.
There are 6 groups.
2 groups
You can lay the blocks out of decimal numbers by putting the numbers in groups.
NOTHING!
Both are part of the real numbers.
3112331
by rounding off the numbers
they are averages!
No.
Factors.