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Atoms and PTOE Quiz with complete solutions graded A+
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Atoms and PTOE Quiz with complete solutions graded A+
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Atoms and PTOE QuizAtom - correct answer ✔✔An atom is the smallest particle of an element, composed of protons,
neutrons, and electrons
Atoms are mostly empty space
Element Names and Symbols - correct answer ✔✔The name of an element usually has Latin/Greek roots
and the symbol is 1-3 letters long with the first letter always capitalized
Electron - correct answer ✔✔Negatively charged particle of an element
Orbits around nucleus
Weight is rounded to 0
Energy Levels/Shells - correct answer ✔✔The different routes electrons travel around nucleus (like track
around Parsons)
First energy level holds 2, the next two each hold 8, and the rest can be determined based on the
number of elements in each period.
For example, 5th energy level holds 18 electrons b/c it has 18 elements (Rubidium to Xenon)
Valence Energy Level - correct answer ✔✔The outermost energy level of an atom that has at least one
electron
(Hydrogen's valence level is the 1st one)
(Gold's valence level is the 6th one)
You can tell from what period it's in
Groups will tell you how many valence electrons there are
The last group's atoms have full valence levels
Proton - correct answer ✔✔Positively charged particles in an atom
located in the nucleus
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