(12 points) please please help me thanks

What does earth’s rotation on its axis cause? the tides night and day passing of years phases of the moon

If two atoms are bonded to a central atom with no lone pairs,how will they be arranged

An atom of lithium-7 has an equal number of(1) electrons and neutrons(2) electrons and protons(3) positrons and neutrons(4) positrons and protons