I'm guessing D or C, remember that the noble gases cannot combine
Answer:
The r.a.m. value is used to determine how many isotopes an element has.
Explanation:
Answer:
it would be option C
Explanation:
Speed of light = 3×10^8m/s
Planck's constant = 6.626×10^-34 Js
Wavelength = 8 x 10^-9 m
Energy = [(3×10^8) * (6.626×10^-34)] / 8 x 10^-9
Energy = [19.878×10^(8-34)] / 8 x 10^-9
Energy = 2.48475 × 10^(-26+9)
Energy = 2.48×10^-17 J
Answer:
Percent composition by element
Element Symbol Atomic Mass
Antimony Sb 121.760
Explanation:
