Question

select the correct statement(s) for a sulfur isotope with 18 neutrons. select all that apply. it has 16 electrons it has 18 electrons it has 16 protons its mass number is 34 its atomic number is 16 question 6 1 pts what is the mass number of iron - 58? 58 32 126.90 55.845 26

Explanation:

Step1: Recall sulfur's atomic number

Sulfur (S) has an atomic number of 16. In a neutral atom, the number of protons = number of electrons = atomic number. So a sulfur isotope has 16 protons and 16 electrons.

Step2: Calculate mass number

Mass number = number of protons + number of neutrons. Given 16 protons and 18 neutrons, mass number = 16 + 18 = 34.

Step3: Recall iron - 58 notation

The notation "element - mass number" means the mass number is indicated after the element name. So for iron - 58, the mass number is 58.

Answer:

For the sulfur isotope question:

• it has 16 electrons
• it has 16 protons
• its mass number is 34
• its atomic number is 16

For the iron - 58 question:

• 58