

Mastering Atomic Mass Calculations for the First 30 Elements
Interactive Video
•
Chemistry, Mathematics, Science
•
6th - 8th Grade
•
Practice Problem
•
Hard
Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the trick to calculate the atomic mass of an element with an even atomic number among the first 20 elements?
Multiply by 2
Multiply by 2 and add 1
Multiply by 3
Multiply by 2 and add 2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which element is NOT an exception when applying the tricks to the first 20 elements?
Oxygen
Chlorine
Beryllium
Nitrogen
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you calculate the atomic mass of an element with an odd atomic number among the first 20 elements?
Multiply by 2 and add 2
Multiply by 2
Multiply by 2 and add 1
Multiply by 3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the atomic mass of beryllium, an exception in the first 20 elements?
12
11
9
7
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first trick for calculating atomic masses of elements 21 to 30?
Multiply by 2 and add 3 to 8 if divisible by 7
Multiply by 3 and add 2
Multiply by 2 and add 4 to 8 if even
Multiply by 2 and add 5 to 8 if odd
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which element among 21 to 30 is an exception to the tricks provided?
Scandium
Nickel
Zinc
Copper
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you calculate the atomic mass of an element with an even atomic number among elements 21 to 30?
Multiply by 3 and add 2
Multiply by 2 and add 5 to 8
Multiply by 2 and add 4 to 8
Multiply by 2 and add 3 to 8
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