The answer would be D. because when an acid and base mix the start to cancel each other out causing it to neutralize
<span>Atomic Number 10 is Neon.
1s: 2
2s: 2
2p: 6
3s: 0
3p: 0
4s: 0
3d: 0
4p: 0
5s: 0</span>
It is the boilimg point now aa
K, ca, sc is the right answer. Take a look at table S of your chemistry reference table.