Compared to a proton, an electron has(1) a greater quantity of charge and the same sign(2) a greater quantity of charge and the opposite sign(3) the same quantity of charge and the same sign(4) the same quantity of charge and the opposite sign

Which statement describes both homogeneous mixtures and heterogeneous mixtures?

Consider the elements bromine and chlorine; which elements has a larger ionic radius ?

Which of the following statements about hybrid orbitals is or are true? choose all that apply. choose all that apply. under sp2 hybridization, the large lobes point to the vertices of an equilateral triangle. after an atom undergoes sp hybridization there is one unhybridized p orbital on the atom. the angle between the large lobes of sp3 hybrids is 109.5∘