Gerry is looking at an unknown element. He knows it has 1 valence electron and is highly reactive with water. What group is the element most likely in? Group 1
Group 2
Group 17
Group 18

Draw metallic bonding if two copper

Does the formation of all chemical bonds is based on sharing of electrons?

Many radioactive atoms that have large masses undergo radioactive decay by releasing a particle that is identical to a helium-4 nucleus. what changes in the original atom are expected as a result of this natural phenomenon? the atomic number and the mass number will decrease. the atomic number and the mass number will increase. the atomic number will increase, and the mass number will decrease. the atomic number will decrease, and the mass number will increase.