Stainless steel is an alloy of iron containing 5 percent nickel and 0.175 percent chromium.
How much nickel is present in a 71.5 g sample
of this alloy?
Answer in units of g.

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

i think its 5049.

i hope this !

colorless gas, exhibiting a blue glow when placed in an electric field

b) solid

its a type of rock