Atomic Structure and Properties

The video tutorial explains how to determine the properties of atoms using a periodic table. It covers the analysis of isotopes for elements like sodium, ruthenium, iodine, and magnesium. The tutorial guides viewers through calculating atomic numbers, mass numbers, and net charges, emphasizing a step-by-step approach similar to solving a puzzle.

What tool is essential for solving atomic properties as described in the introduction?

• A calculator

• A computer

• A chemistry textbook

• A periodic table

What is the atomic number of sodium (Na)?

• 10

• 11

• 12

• 13

How many electrons does a sodium ion with a 1+ charge have?

• 12

• 10

• 9

• 11

What is the mass number of ruthenium (Ru) in the example provided?

• 56

• 104

• 44

• 100

What is the net charge of ruthenium (Ru) in the example?

• 1+

• 2+

• 3+

• 4+

What is the atomic number of iodine?

• 51

• 52

• 53

• 54

How many neutrons are present in iodine-131?

• 76

• 79

• 77

• 78

What is the atomic number of magnesium (Mg)?

• 13

• 11

• 10

• 12

How many electrons does a magnesium ion with a 2+ charge have?

• 10

• 9

• 11

• 8

What is the mass number of magnesium in the example?

• 23

• 25

• 26

• 24