Question

which numbers/symbols correctly complete the table above?
○ ti, 22, 20
○ ti, 22, 22
○ sc, 22, 22
○ v, 44, 40

Explanation:

Step1: Recall atomic number and symbol relationship

The atomic number is unique to each element. Titanium (Ti) has an atomic number of 22.

Step2: Check mass number and neutron - proton relationship

Mass number = number of protons + number of neutrons. For an atomic number (protons) of 22 and mass number 44, neutrons = 44 - 22 = 22.

Step3: Verify electron - proton relationship for neutral atom

In a neutral atom, number of electrons = number of protons. Here, protons = 22, so electrons = 22.

Step4: Check oxidation state for neutral atom

For a neutral atom, oxidation state (charge) is 0.

Answer:

Ti, 22, 22