Mass number = protons + neutrons
mass number = 5 + 7
mass number = 12
Answer:
Correct answer is A.
Explanation:
Frequency is the number of oscillations that a wave have per unit time. Since time is measured in seconds, the wave with the highest frequency must register the highest number of oscillation per second. Hence, correct answer is A.
Answer:
please refer to the attachment above;)
A mineral occurs naturally, meaning that even though there are artificial substances that might be described as mineral-like they are not minerals
