Element A has 6 valence electrons. Element B has 7 valence electrons. Both atoms must follow the octet rule. In the Lewis structure of AB2, the number of lone pair electrons on the central atom A is:

Arrange the elements in order of increasing electronegativity. use the periodic table to you arrange the elements. p o k mg

My plate recommends that of your nutritional intake comes from fruits and vegetables. a. 30% b. 50% c. 20% d. 40%

Two moles of potassium chloride and three moles of oxygen are produced from the decomposition of two moles of potassium chlorate, kcos3(s). write the balanced equation. how many moles of oxygen are produced from 12 moles of potassium chlorate