Which of the following describes the element F? Choose all that apply. a. consists of diatomic molecules in elemental form b. forms a basic solution in water belongs to a group c. consisting entirely of gases is very reactive as a metal d. reacts vigorously with alkali metals to form salts e. is one of the group of the least reactive elements

An atomic nucleus is composed ofa)protons.b)protons and neutrons.c)protons and electrons.d)protons, neutrons, and electrons.

Vi limitens. vastery test select the correct answer. which statement explains why large atoms are more reactive than small atoms? a. large atoms have valence electrons farther from the nucleus and lose them more readily. b. large atoms have greater ionization energy, which they can utilize during a reaction. c. large atoms have a greater number of electrons that they can lose during a reaction. d. large atoms have more energy levels, so they have more energy to pass on in a reaction. reset next

One student said that the investigation was not valid (a fair test). write a plan for the investigation that includes improvements to the method and apparatus