3 years ago

Between magnesium and calcium, which has the highest ionization energy, and why?

Chemistry

1 answer:

quester [9]3 years ago

3 0

Answer:

magnesium

Explanation:

magnesium has fewer valence shells meaning that the protons have a stronger hold on the electrons and it would take more energy to remove an electron to create an ion.

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Duncan knows that it takes 36400 cal of energy to heat a pint of water from room temperature to boiling. However, Duncan has pre

brilliants [131]

Answer:

$\large \boxed{\text{122 000 J}}$

Explanation:

1. Calculate the energy needed

$\text{Energy} = \text{0.800 pt} \times \dfrac{\text{36 400 cal}}{\text{1 pt}} = \text{ 29 120 cal}$

2. Convert calories to joules

$\text{Energy} = \text{29 120 cal} \times \dfrac{\text{4.184 J}}{\text{1 cal}} = \textbf{122 000 J}\\\\\text{The water will have absorbed $\large \boxed{\textbf{122 000 J}}$}$