Organisms Are Composed of Molecules,which Are Collections of Smaller Units,called

Q11: A scientist conducts a procedure that causes

Q63: When atoms gain or lose electrons,they become

Q64: Sodium has 11 electrons arranged in three

Q65: Nuclear particle;positive charge.<br>A)electron<br>B)ion<br>C)isotope<br>D)neutron<br>E)proton

Q66: All of the substances of the universe

Q67: Atom is negatively charged because it has

Q68: Because oxygen is more electronegative than hydrogen,the

Q69: Two carbon atoms might be joined to

Q71: Nuclear particle;no negative charge.<br>A)electron<br>B)ion<br>C)isotope<br>D)neutron<br>E)proton

Q73: When water ionizes,it produces equal amounts of