Question

If an element has a mass number of 244 and an atomic number of 94, how many neutrons does the element have?

A. 94

B. 244

C. 155


D. 150

Answer 1

The element with a mass number of 244 and an atomic number of 94 has 150 neutrons, which is calculated by subtracting the atomic number from the mass number.

Step-by-step explanation:

If an element has a mass number of 244 and an atomic number of 94, the number of neutrons can be found by subtracting the atomic number from the mass number. So, to find the neutrons, you subtract 94 (the number of protons, since the atomic number represents the number of protons) from 244 (the mass number).

244 - 94 = 150.

Therefore, the element has 150 neutrons. So, the correct answer to your question is D. 150.

Answer 2

A. 94
The atomic number and the proton and electron numbers are the same.