If we have some new discovered elements with atomic number of 115, 116, 117, 118

Question

If we have some new discovered elements with atomic number of 115, 116, 117, 118, 119, 120, And 121. Write these in order from lower ionization energy and atomic radius to the higher, and write its valence electron magnetic spin? This is my exam question. Plz answer correctly in detail. Otherwise plz do not post wrong answer if you are not sure. Thanks If we have some new discovered elements with atomic number of 115, 116, 117, 118, 119, 120, And 121. Write these in order from lower ionization energy and atomic radius to the higher, and write its valence electron magnetic spin? This is my exam question. Plz answer correctly in detail. Otherwise plz do not post wrong answer if you are not sure. Thanks This is my exam question. Plz answer correctly in detail. Otherwise plz do not post wrong answer if you are not sure. Thanks

Explanation / Answer

Elements in the same period show trends in atomic radius, ionization energy, electron affinity, and electronegativity. Moving left to right across a period, the ionization energy increase when moving from left to right across a period. The more tightly bound an element is, the more energy is required to remove an electron. This occurs because each successive element has an added proton and electron, which causes the electron to be drawn closer to the nucleus. Electronegativity increases in the same manner as ionization energy because of the pull exerted on the electrons by the nucleus.atomic radius usually decreases.

The order of ionisation energy from lower to higher is as follows:

115 < 116 < 117 < 118 < 119 < 120 < 121

Lower Higher

Ionisation energy

But there is a decrease in atomic radius in moving from left to right across a period. Therefore,

115 < 116 < 117 < 118 < 119 < 120 < 121

Higher Lower

Atomic radius

Valence electron magnetic spin:

5f14 6d10 7s2 7p3 = 115 = +1/2

5f14 6d10 7s2 7p4 = 116 = -1/2

5f14 6d10 7s2 7p5 = 117 = +1/2

5f14 6d10 7s2 7p6 = 118 = -1/2

5f14 6d10 7s2 7p6 8s1= 119 = +1/2

5f14 6d10 7s2 7p6 8s2 = 120 = -1/2

5f14 6d10 7s2 7p6 8s28p1 = 121 = +1/2

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