8.5A Atomic Structure 7th
Assessment
•
Tracie Lalonde-Bernal
•
Science
•
8th Grade
•
60 plays
•
Hard
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20 questions
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1.
MULTIPLE CHOICE
2 mins • 1 pt
Which statement accurately describes the atoms of a specific element?
2.
MULTIPLE CHOICE
2 mins • 1 pt
Which statement correctly describes the location and charge of the electrons in an atom?
3.
MULTIPLE CHOICE
1 min • 1 pt
What is the total number of protons, neutrons, and electrons in a Cadmium atom if that has a mass number of 112
4.
MULTIPLE CHOICE
1 min • 1 pt
What is the difference between the number of electrons in an atom of Selenium (Se) which has an atomic number of 34, and the number of electrons in an atom of Aluminum (Al) which has an atomic number of 13
5.
MULTIPLE CHOICE
1 min • 1 pt
How many protons, neutrons, and electrons are present in an atom of Hafnium (Hf) with a mass number of 178
6.
MULTIPLE CHOICE
1 min • 1 pt
An atom of a certain element has 36 protons, 36 electrons, and a mass number of 84. At room temperature this element is a very stable gas. How many neutrons are in this atom?
7.
MULTIPLE CHOICE
2 mins • 1 pt
In the early 1900's many scientists thought that an atom consisted of a positive substance with negative charges scattered throughout the substance. Then Earnest Rutherford completed an experiment that changed the concept of an atom. His discovery led to the understanding that an atom consists mostly of empty space with _________.
8.
MULTIPLE CHOICE
1 min • 1 pt
What types of particles are found in the cloud surrounding the atom's nucleus?
9.
MULTIPLE CHOICE
1 min • 1 pt
What is the mass of Potassium (K) atom that has 20 neutrons
10.
MULTIPLE CHOICE
1 min • 1 pt
Which of the following best describes an electron?
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