
Chemistry Flashcard
Flashcard
•
Science
•
11th Grade
•
Practice Problem
•
Easy
Michelle Pack
Used 2+ times
FREE Resource
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36 questions
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1.
FLASHCARD QUESTION
Front
A neutral atom may contain 10 protons.
Back
11 neutrons and 10 electrons.
2.
FLASHCARD QUESTION
Front
To identify an element, you need to know the number of _______ in its nucleus.
Back
protons.
3.
FLASHCARD QUESTION
Front
Which of the following is NOT a characteristic of the atomic nucleus?
- It is positively charged.
- It occupies most of the atom's volume.
- It is extremely dense.
- It contains most of the atom's mass.
Back
It occupies most of the atom's volume.
4.
FLASHCARD QUESTION
Front
The element chlorine has two main isotopes – one with an atomic mass of 35.45 and another with an atomic mass of 37.45. Based on the average atomic mass listed on the periodic table, which isotope is more abundant?
Back
The one with an atomic mass of 35.45.
5.
FLASHCARD QUESTION
Front
An atom with 7 protons, 7 neutrons, and 10 electrons has an atomic number of _____?
Back
7
6.
FLASHCARD QUESTION
Front
An atom with 7 protons, 7 neutrons, and 10 electrons has a mass number of _______.
Back
14
7.
FLASHCARD QUESTION
Front
What is the number of valence electrons in a typical atom of calcium?
Back
2
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