Chemistry - Semester 1 Final Exam Review (LG2-4)
Flashcard
•
Chemistry, Science
•
9th - 12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Which element in period 2 is the most reactive?
Back
Fluorine (F) is the most reactive element in period 2.
2.
FLASHCARD QUESTION
Front
What does the number 1.00794 represent in chemistry?
Back
The number 1.00794 represents the atomic mass of hydrogen.
3.
FLASHCARD QUESTION
Front
What is the atomic mass of silicon?
Back
The atomic mass of silicon is 28.
4.
FLASHCARD QUESTION
Front
What type of compound is represented by the formula 3 CH₄?
Back
3 CH₄ is a covalent compound.
5.
FLASHCARD QUESTION
Front
What is the correct name for the ion P³⁻?
Back
The correct name for P³⁻ is phosphide.
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 covalent bond.
Back
A covalent bond is a chemical bond formed by the sharing of electron pairs between atoms.
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