Answer:
SiO2
Explanation:
'Si' is the label given to silicon on the periodic table.
When the Bond<span> Order is higher, </span>bond length<span> is shorter, and the shorter the </span>bond length<span> means a greater the </span>Bond<span> Energy because of increased electric attraction. In general, the shorter the </span>bond length<span>, the greater the </span>bond<span> energy.</span>
8. <span>The number of protons in the nucleus of an element is called its atomic number.
9. </span><span>If two or more compounds are composed of elements A and B, the ratio of the masses of B combined with 1 g of A is always a ratio of small whole numbers. This is a statement of the law of definite proportions.
</span><span>Hope I helped!</span>
There are 7 valence electrons in the atom :)