Question

What is the atomic mass of boron?
5 amu
12.32 amu
10.8 amu
Answer
How does the periodic table help to predict the properties of elements?
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1 point
Elements in the same group have similar properties
Elements in the same period have similar properties
The number of protons in an atom's nucleus
Elements with higher atomic numbers are more reactive
Elements with lower atomic masses are more reactive
Answer
If the atomic number of an element is six and the atomic mass is 15, how many neutrons does it have?
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1 point
6 Neutrons
9 Neutrons
15 Neutrons
Answered by GPT 3.5
The atomic mass of boron is 10.8 amu.
Answered by GPT 3.5
Elements in the same group have similar properties.
Answered by GPT 3.5
To find the number of neutrons, subtract the atomic number from the atomic mass.
So, for an element with an atomic number of 6 and an atomic mass of 15, the number of neutrons would be 15 - 6 = 9 neutrons.