Current Attempt in Progress Choose the larger atom in each pair: Mg or S

\( 2 Mg + \square O _ { 2 } \rightarrow \square MgO \)

An element occurs in two isotopic forms as \( { }_{5}^{10} \mathrm{w} \) and \( { }_{5}^{11} \mathrm{~W} \) with abundance of \( 80 \% \) and \( 20 \% \) respectively. What is its relative atomic mass?

The modern atomic theory agrees with Rutherford's atomic model on ............ the system in which the electrons revolve around the nucleus. (b) that the electron has dual nature. together precisely. (d) that the atom is not uniformly dense.

9. En una disolución el soluto, corresponde a: I. Sustancia que se encuentra en menor cantidad. II. Sustancia que se encuentra en mayor cantidad. III. Sustancia en igual cantidad que el soluto. IV. Sustancia que disuelve al soluto. A. Sólo I. B. Sólo II. C. Sólo III. D.IyIV. E. II YIV.

Element \( X \) with electronic configuration \( 1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 4 s^{2} \) belongs to group