Q Question 1 1 out of 1 points In which set of elements would all members be expected to have very similar chemical properties? Question 2 Screening of the nuclear charge by core electrons in atoms is . Question 3 0 out of 1 points The atomic radius of main-group elements generally increases down a group because Question 4 1 out of 1 points Of the following, which gives the correct order for atomic radius for Ca, K, As, Ge and Kr? Question 5 Of the choices below, which gives the order for first ionization energies?