Answer:a
Living things are divided into five kingdoms: animal, plant, fungi, protist and monera
Answer: Yes, if there are more shells the nuclear charge decreases.
Alkina metals all have the similar proteries
The formula we use would be the graham's law. We do as follows:
<span>E_Kr / E_Ne = sqrt ( M_Ne / M_Kr)
</span>
<span>= sqrt ( 20.1797 g/mol / 83.798 g/mol ) </span>
<span>= sqrt (0.24081) </span>
<span>= 0.4907
</span>
Hope this answers the question. Have a nice day.
