Question

Which element makes up 1/400 of the human body ? Magnesium, Potassium, Sodium, or Sulfur

Answer 1

Magnesium makes up 1/400 of the human body

Answer 2

Answer:

A. Magnesium.

Step-by-step explanation:

We are asked to find element which makes up 1/400 of the human body.

Let us convert 1/400 to percentage.

$\frac{1}{400}\times 100\%$

$\frac{1}{4}\%$

$0.25\%$

We know that amount of magnesium in human body is approximately 0.25%, therefore, Magnesium makes up 1/400 of the human body.