Which region contains the alkaline earth metal family of elements? A, B, C or D?

B

Explanation:

B is the most likely region that contains alkaline earth family elements.

two charges are fixed in place on the x-axis as shown. the charge at x = 0 is negative and has magnitude q = 2 μcoulombs (1 μcoulomb = 10-6 coulombs). the charge at x = d, (d = +12 cm), is positive and has magnitude q = 4 μcoulombs. find a point x = xo along the x-axis at which the electric field is zero.

their crystal patterns have been disrupted by stress