Answer:
8
Explanation:
The atomic number refers to the number which identifies the element, which is the proton number.
The metric prefix name for 1/100 is centimeters.
Atomic mass of sodium is 22.9 g/mol
atomic mass of chloride is 35.45 g/mol
sodium chloride is 22.99 + 35.45= 58.44 g/mol
Remember Tin isn’t Ti, it’s actually Sn and by looking at the periodic table you find it is 118.7 g
Yes, the atomic radius increases as you move down a group of elements.
this is true
going down leads to valence electrons that are further away from nucleus -> less electrostatic attraction -> less pull towards nuc. -> greater radius/volume taken
