Question

complete the table to determine the nuclear symbols for neutral atoms a and b. atom a: nuclear symbol yellow boxes, subatomic particles: protons: 40, neutrons: 54, electrons: 40. question: to which element does atom a belong? dropdown. atom b: nuclear symbol yellow boxes, subatomic particles: protons: 40, neutrons: 52, electrons: 40. question: to which element does atom b belong? dropdown. are atoms a and b isotopes of the same element? dropdown with \yes because they have the same number of protons.\

Explanation:

Step1: Determine element for Atom A

The number of protons (atomic number) determines the element. Atom A has 40 protons. The element with atomic number 40 is Zirconium (Zr).

Step2: Determine element for Atom B

Atom B also has 40 protons. So it also belongs to Zirconium (Zr).

Step3: Check isotopes

Isotopes have the same atomic number (protons) but different mass numbers (protons + neutrons). Both have 40 protons, so they are isotopes.

Answer:

• Atom A belongs to: Zirconium (Zr)
• Atom B belongs to: Zirconium (Zr)
• Are they isotopes: Yes (because same number of protons)