What is the total number of electrons in the valence shell of an atom of aluminum in the ground state?
1)8 2)2 3)3 4)10

Which element forms an ionic bond with flourine? 1) fluorine 2) carbon 3) potassium 4) oxygen

What is the main reason why some developing countries fear the increase the free trade policies around the world?

Which answer tells the reason the earth’s climate is getting warmer? too many animals are becoming extinct. large glaciers are melting in antarctica. the earth is moving closer to the sun. driving cars gives off gases that trap heat in the atmosphere.