H, H, L, B, B, C, N, O, F ?
series/series.02
Problem
H, H, L, B, B, C, N, O, F ?
Show solution
Answer 1: N, N, M, A The first letters of the symbols for the elements. Answer 2: N, S, M, A The first letters of the names of the elements.
series/series.02
H, H, L, B, B, C, N, O, F ?
Answer 1: N, N, M, A The first letters of the symbols for the elements. Answer 2: N, S, M, A The first letters of the names of the elements.