Answer:
The atomic numbers of four elements A, B, C, and D are 6,8,10, and 12 respectively. The two elements which can react to form ionic bonds (or ionic compounds) are B (8= 2,6) and D (12 =2,8,2). So D donates its two electrons to B to fulfill their octet.
Explanation:
There are globular and open star clusters, but there are no binary, eclipsing, or wobbling ones.
Answer:
The answer is True.
Explanation:
The sentence above is true it all adds up.
SI unit of frequency is Hertz(Hz)
Answer:
it cannot be separated by physical methods
Explanation: