Atomic Structure
Flashcard
•
Science
•
9th Grade
•
Practice Problem
•
Hard
Wayground Content
FREE Resource
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15 questions
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1.
FLASHCARD QUESTION
Front
Where are the metalloids located on the periodic table?
Back
Metalloids are located in the green region of the periodic table.
2.
FLASHCARD QUESTION
Front
How many protons does an atom with atomic number 5 have?
Back
An atom with atomic number 5 has 5 protons.
3.
FLASHCARD QUESTION
Front
How many neutrons are in a lithium atom with an atomic mass of 7?
Back
A lithium atom with an atomic mass of 7 has 4 neutrons.
4.
FLASHCARD QUESTION
Front
What is the arrangement of valence and core electrons in a neutral atom with atomic number 15?
Back
There are 5 valence electrons and 10 core electrons.
5.
FLASHCARD QUESTION
Front
If a hydrogen atom emits red, blue-green, blue, and violet light, how many energy levels does it have in the visible region of the spectrum?
Back
The hydrogen atom has 5 energy levels in the visible region of the spectrum.
6.
FLASHCARD QUESTION
Front
What is the atomic number of an element?
Back
The atomic number is the number of protons in the nucleus of an atom.
7.
FLASHCARD QUESTION
Front
Define valence electrons.
Back
Valence electrons are the electrons in the outermost shell of an atom that are involved in chemical bonding.
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