
22-23 8th Grade Science 1st 6 Weeks Review
Flashcard
•
Science
•
8th Grade
•
Practice Problem
•
Hard
Wayground Content
FREE Resource
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10 questions
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1.
FLASHCARD QUESTION
Front
Lithium has 3 Protons, 3 Electrons, and 4 Neutrons. Which Bohr Model represents Lithium?
Back
2.
FLASHCARD QUESTION
Front
Which element (atom) is explained in the chart? Options: Radon (Rn), Cadmium (Cd), Rubidium (Rb), Astatine (At)
Back
Rubidium (Rb)
3.
FLASHCARD QUESTION
Front
Based on these drawings, which is the LEAST reactive? Options: Neon, Chlorine, Gallium, Tin
Back
Neon, because it has 2 energy levels with 8 electrons in the 2nd level.
4.
FLASHCARD QUESTION
Front
Which 2 atoms are of elements in the same group? Options: Atom 1 and 2, Atom 1 and 4, Atom 2 and 3, Atom 3 and 4
Back
Atom 1 and 4
5.
FLASHCARD QUESTION
Front
Which student's responses are correct? Options: Student 1, Student 2, Student 3, Student 4
Back
Student 2
6.
FLASHCARD QUESTION
Front
How many protons, neutrons, and electrons are present in the atom of Hafnium, Hf, with a mass number of 178?
Back
72 Protons, 106 Neutrons, 72 Electrons
7.
FLASHCARD QUESTION
Front
Element R and Q have the same number of Valence Electrons. These elements both have similar chemical behavior, but Element R has fewer energy shells. Which statement best describes the positions of the 2 elements on the Periodic Table?
Back
The two elements are in the same group, with Element R just above Element Q.
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