Question

question 3 (1 point) which of the following elements is a halogen? fe (iron) he (helium) cl (chlorine) none are correct mg (magnesium) question 4 (1 point) which of the following statements is true? none are correct a neutron has charge but no mass carbon has an atomic number of 12 an electron has mass but no charge a proton has positive charge but no mass

Explanation:

• For the first question, halogens are elements in group 17 of the periodic - table. Chlorine (Cl) is in group 17, while iron (Fe) is a transition metal, helium (He) is a noble gas, and magnesium (Mg) is an alkaline - earth metal.
• For the second question, a neutron has mass but no charge. Carbon has an atomic number of 6. An electron has mass and a negative charge. A proton has positive charge and mass. So none of the statements in the second question are correct.

Answer:

Question 3: C. Cl (Chlorine)
Question 4: A. None are correct