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Which of the following statements are incorrect?

a)

The third ionization energy of lithium is 9 times the second ionization energy of helium

b)

The second ionization energy of helium is 4 times the first ionization of hydrogen

c)

Radius of third orbit of  is 3 times the radius of third orbit of hydrogen atom

d)

For designating an orbital three quantum numbers are needed



Question ID - 102388 | SaraNextGen Top Answer

Which of the following statements are incorrect?

a)

The third ionization energy of lithium is 9 times the second ionization energy of helium

b)

The second ionization energy of helium is 4 times the first ionization of hydrogen

c)

Radius of third orbit of  is 3 times the radius of third orbit of hydrogen atom

d)

For designating an orbital three quantum numbers are needed

1 Answer
127 votes
Answer Key / Explanation : (a,b,c) -

(a,b,c)

IE of hydrogen like species  IE(H)

Radius of orbits in hydrogen like species is given by the relation

127 votes


127