Podcast
Questions and Answers
Define Molecule:
Define Molecule:
A molecule is formed when two or more atoms bond together.
Define Compound:
Define Compound:
A compound is a substance that is formed when two or more different types of atoms bond together.
Which family (Group) are Argon and Neon a part of?
Which family (Group) are Argon and Neon a part of?
Noble Gases
Be able to identify elements (by their atomic number) that are in the same family. Which family (group) contains Iodine, Bromine, and Fluorine?
Be able to identify elements (by their atomic number) that are in the same family. Which family (group) contains Iodine, Bromine, and Fluorine?
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Why is the bottom of Group 1 the most reactive of the metals?
Why is the bottom of Group 1 the most reactive of the metals?
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Why do the atomic radii of elements reduce from left to right across the periodic table?
Why do the atomic radii of elements reduce from left to right across the periodic table?
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Study Notes
Elements and Compounds
- Elements naturally form ions to achieve a complete/stable electron configuration
- A compound is a substance formed when two or more different elements are chemically bonded together
Families and Groups
- Argon and Neon belong to Group 18 (noble gases)
- Elements in Group 18 have a stable electron configuration (complete valence shell)
- Elements are identified by their atomic number
- Iodine, Bromine, and Fluorine are in Group 17 (halogens)
- The bottom of Group 1 (alkali metals) are the most reactive metals because they readily lose an electron to achieve a stable configuration
Atomic Radii
- Atomic radii decrease from left to right across the periodic table because of increasing nuclear charge. The stronger attraction between the nucleus and the electrons pulls the electron cloud inwards.
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Description
Test your knowledge on elements, compounds, and their properties in chemistry. This quiz covers concepts such as ion formation, noble gases, halogens, and the trends in atomic radii across the periodic table. Explore how these factors contribute to the behavior of different elements.
