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allsm [11]
2 years ago
5

1. Which of the following is an example of a direct observation?

Biology
1 answer:
AVprozaik [17]2 years ago
4 0

Answer: a. Measuring the amount of rain that falls in a 24-hour period in a rain gauge.

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question 4: an atom with 7 protons, 6 neutrons, and 7 electrons, has an atomic mass of blank amu. (Enter a whole number) ​
Ivanshal [37]
Answer : An atom with 7 protons, 6 neutrons,
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Explanation:
As we are give that,
Number of protons
7
Number of electrons =7
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As we know that,
Atomic number =Number of protons = Number
of electrons =7
Atomic mass = Number of neutrons + Atomic
number
Atomic mass = 6 + 7 = 13 amu
Therefore, the atomic mass is, 13 amu
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