Atomic structure and the periodic table
Flashcard
•
Chemistry
•
8th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
True or False - Protons and Neutrons have about the same mass.
Back
True - They have about the same mass.
2.
FLASHCARD QUESTION
Front
How many valence electrons does an element with 5 valence electrons have?
Back
5
3.
FLASHCARD QUESTION
Front
The element sodium is found in group 1, period 3. How many shells/levels would its atom have? What is its valence electron?
Back
3 shells, 1 valence electron.
4.
FLASHCARD QUESTION
Front
What is the correct electron arrangement by shells/levels for the atom of neon?
Back
2, 8.
5.
FLASHCARD QUESTION
Front
Beryllium is in which group number?
Back
Group 2.
6.
FLASHCARD QUESTION
Front
What is the atomic number of sodium?
Back
11.
7.
FLASHCARD QUESTION
Front
What is the charge of a proton?
Back
Positive.
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