Which of the following statements is true? A.The krypton 1s orbital is smaller t

ID: 878552 • Letter: W

Question

Which of the following statements is true?

A.The krypton 1s orbital is smaller than the helium 1s orbital because krypton's p and d orbitals crowd the s orbitals.

B.The krypton 1s orbital is larger than the helium 1s orbital because krypton's ionization energy is lower so it's easier to remove electrons.

C.The krypton 1s orbital is larger than the helium 1s orbital because krypton contains more electrons.

D.The krypton 1s orbital is smaller than the helium 1s orbital because krypton's nuclear charge draws the electrons closer.

E.The krypton 1s orbital and the helium 1s orbital are the same size because both s orbitals can have only two electrons.

A section of the periodic table with all identification features removed is shown below.

Which element has the smallest atomic radius?

A.V

B.X

C.W

D.Z

E.Y

The change in energy for which of the following processes corresponds to the second ionization energy of Barium?

A. Ba(g) = Ba+(g)+e-

B. Ba(g)= Ba2+(g)+2e-

C.Ba+(g) = Ba2+(g)+e-

D.Ba(g)+e-=Ba-(g)

E.Ba-(g)=Ba(g)+e-

V W X Y Z

1)D

2)B

3)c

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