What occurs when an atom loses an electron?
(1) the atom’s radius decreases and the atom becomes a negative ion.
(2) the atom’s radius decreases and the atom becomes a positive ion.
(3) the atom’s radius increases and the atom becomes a negative ion.
(4) the atom’s radius increases and the atom becomes a positive ion.

Which of the following did jj thompson discover about atoms? a)an atom has an internal structure. b) atoms are tiny indivisible particles. c)electrons orbit the nucleus of an atom. d) the nucleus of an atom contains protons and neutrons.

Select the correct text in the passage. which sentences describe examples of sustainable living? i live in an old apartment building downtown, but my company is based in an office park on the outskirts of the city. i drive an old car that needs to be replaced. i plan to buy a hybrid for better gas mileage, but for now i am able to carpool with a couple of friends from work. the drive to the office park is about 45 minutes each way, but we do get to work in a modern building. the architects just received a leed certification for the design.

The nuclear fission process releases neutrons and question 27 options: alpha particles electrons energy beta particles