Indicate the number of unpaired electrons for each:
[noble gas] ns2np5
[noble gas] ns2(n-1)d2
[noble gas] ns2(n-1)d10np1
[noble gas] ns2(n-2)f6

To solve this task you should remember one basic rule :  electrons will go into orbitals of equal energy unpaired. According to this rule, we can easily  indicate the number of  unpaired electrons : if we have 3 p orbitals, s2p5 has 1 unpaired e; if we have  5 d orbitals it would be 2 unpaired e. Just go this way, I am pretty sure it's clear.

Ithink this is what you meant. the temperature at which a liquid begins to boil is called the boiling point. the boiling point of water is 212°f or 100°c.  and at that point will start to turn into steam (gas)

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