Social Sciences, asked by Anonymous, 5 months ago

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Answered by guptapurbanha1211

0

Answer:

Germanium and Silicon respectively

Answered by vivekbt42kvboy

2

Answer:

(a) Eka-silicon was replaced by Germanium and Eka-aluminium was replaced by Gallium.

(b) Gallium: Group 13 Period 5

Germanium: Group 14 period S

(c) Gallium is metal, while Germanium is metalloid

(d) Gallium has 3 valence electrons, while Germanium has 4.

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