Answer:
2.19 x 10^-12.
Explanation:-
The relation between Ka and Kb for an acid and it's conjugate base is
Ka x Kb = Kw where Kw = ionic product of water.
So Kb = 10^-14 / (4.57 x 10 ^ -3)
= 2.19 x 10^-12
How many neutrons does element X have if its atomic number is 20 and its mass number is 82?
1 answer:
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Hi, Iqraiqbalxx!
Copper is an element on the periodic table of elements. It is also known as Cu.
Atomic Number-29
Group-11.
Copper is an element on the periodic table of elements. It is also known as Cu.
Atomic Number-29
Group-11.