Question

part iii. fill in the isotope names and any missing information on the chart. use your periodic table and the information provided. assume all atoms are neutral.

Explanation:

Step1: Recall atomic - particle relationships

In a neutral atom, the number of protons = number of electrons. The mass number (not given here but relevant conceptually) is the sum of protons and neutrons.

Step2: Identify elements from proton numbers

For the first two columns labeled "Manganese" and "Phosphorus", the proton numbers match their atomic numbers on the periodic table. For the Germanium columns, proton number 32 is consistent with Germanium's atomic number.

Step3: Fill in missing information

For the third - left table:

• Since number of electrons = 46 and atom is neutral, number of protons = 46. Looking at the periodic table, the element is Palladium (Pd). Mass number = 46 + 48=94. Another isotope with 51 neutrons has mass number 46 + 51 = 97.

For the fourth - right table:

• Since number of electrons = 55, number of protons = 55. The element is Cesium (Cs). Mass number for the first isotope with 113 neutrons is 55+113 = 168. Mass number for the second isotope with 111 neutrons is 55 + 111=166.

The completed table for the third - left one (from top - to - bottom, left - to - right): Palladium, 46, 48, 46; Palladium, 46, 51, 46.
The completed table for the fourth - right one (from top - to - bottom, left - to - right): Cesium, 55, 113, 55; Cesium, 55, 111, 55.

Answer:

Element	# of protons	# of neutrons	# of electrons
Palladium	46	51	46
Cesium	55	113	55
Cesium	55	111	55