Table of contents

1. The Chemical World9m
- The Scientific Method
  9m
2. Measurement and Problem Solving2h 19m
3. Matter and Energy2h 15m
4. Atoms and Elements2h 33m
5. Molecules and Compounds1h 50m
6. Chemical Composition1h 23m
7. Chemical Reactions1h 43m
8. Quantities in Chemical Reactions1h 8m
9. Electrons in Atoms and the Periodic Table2h 32m
10. Chemical Bonding2h 10m
11 Gases2h 7m
12. Liquids, Solids, and Intermolecular Forces1h 11m
13. Solutions3h 1m
14. Acids and Bases2h 14m
15. Chemical Equilibrium1h 27m
16. Oxidation and Reduction1h 33m
17. Radioactivity and Nuclear Chemistry53m

9. Electrons in Atoms and the Periodic Table

Periodic Trend: Atomic Radius (Simplified)

Introduction to Chemistry

9. Electrons in Atoms and the Periodic Table

Periodic Trend: Atomic Radius (Simplified)

Previous problemNext problem

Struggling with Introduction to Chemistry?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Which alkaline earth metal has the largest atomic radius?

Previous problemNext problem

Verified step by step guidance

Identify the group of elements known as alkaline earth metals. These are found in Group 2 of the periodic table and include elements like Beryllium (Be), Magnesium (Mg), Calcium (Ca), Strontium (Sr), Barium (Ba), and Radium (Ra).

Understand that atomic radius generally increases as you move down a group in the periodic table. This is because each successive element has an additional electron shell, making the atom larger.

Compare the given options with the list of alkaline earth metals. The options provided are Na (Sodium), Ba (Barium), Cl (Chlorine), Mg (Magnesium), and Li (Lithium).

Recognize that among the options, only Ba (Barium) and Mg (Magnesium) are alkaline earth metals.

Determine which of these alkaline earth metals has the largest atomic radius. Since atomic radius increases down the group, Barium (Ba), being lower in the group than Magnesium (Mg), will have the largest atomic radius.