1. For the element Tungsten (W) answer the following questions; a) Give its elec

Question

1. For the element Tungsten (W) answer the following questions; a) Give its electron configuration b) How many valence electrons does this element have c) How many core electrons does this element have d) If this element were to form an ion, would the ion be e) Compared to sulfur, would this atom be more or less f) Compared to sulfur, would this atom have a greater or g) Would this element in the ground state be diamagnetic h) Attempt to draw an energy diagram of only the last smaller or bigger than the neutral atom? metallic? lower ionization energy? or paramagnetic? three sublevels for this element. electrons bit) (That's the lines for orbitals and half arrows for

Explanation / Answer

a) Tungsten (W) which has atomic number 74 has following electronic configuration

[Xe] 4f14 5d4 6s2

b) valence electrons = 4 (in d subshell) + 2 (in s subshell)

So, valence electrons = 6

c) core electrons in Tungsten = atomic number - valence electron

= 74 - 6

= 68

d) it generally form a cation, and when doing so, it loses a electron, so nuclear charge now attracts the electron cloud more strongly, which leads to decrease in size of the cation. Therefore cation will be smaller in size than neutral atom.

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