jelaskan mengapa semasa fenomena gerhana matahari berlaku , kita perlu melihat kejadian tersebut pada permukaan air di dalam sebesen air .​

Consider the two electron arrangements for neutral atoms a and b. are atoms a and b the same element? a - 1s2, 2s2, 2p6, 3s1 b - 1s2, 2s2, 2p6, 5s1

Select all that apply. a beta particle: is electromagnetic energy is an electron has zero charge is emitted from the nucleus has a +2 charge has a -1 charge

Neils bohr believed that electrons orbited the nucleus in different energy levels, based on strong support from