Question

Identify the number of neutrons in one atom of sulfur with an atomic mass number of 34 amu.

Answer 1

The number of neutrons in a sulfur atom with an atomic mass number of 34 amu is 18, determined by subtracting the atomic number of sulfur (16) from its atomic mass number (34).

Step-by-step explanation:

To identify the number of neutrons in one atom of sulfur with an atomic mass number of 34 amu, you need to know the sulfur's atomic number, which is the number of protons in the nucleus. The atomic number for sulfur (S) is 16, which means every atom of sulfur has 16 protons.

The atomic mass number is the sum of protons and neutrons in an atom's nucleus. Since the atomic mass number of sulfur in this case is 34, the calculation to find the number of neutrons would be:

Number of neutrons = Atomic mass number - Atomic number
Number of neutrons = 34 - 16
Number of neutrons = 18

So, one atom of sulfur with an atomic mass number of 34 amu has 18 neutrons.

Answer 2

18 neutrons

Step-by-step explanation:

• The atomic number of sulfur is 16.
• Atomic number indicates the number of protons in the nucleus of an atom.
• Neutrons are found in the nucleus of an atom together with the protons and account for the difference in the mass number among isotopes of an element.
• The sum of neutrons and protons gives the atomic mass number of an element.
• Therefore; given the mass number and the atomic number(number of protons) we can calculate the number of neutrons.

Number of protons = 16

Mass number = 34

Number of neutrons = mass of number - number of protons

= 34 - 16

= 18 neutrons