Periodic law states that when the elements are arranged according to their atomic numbers, this allows elements with similar pro
1 answer:
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Answer:
50 MHz
Explanation:
The relation between frequency and wavelength is shown below as:
c is the speed of light having value
Given, Wavelength = 6 m
Thus, Frequency is:
Also,
Also, 1 Hz = MHz
So,<u> Frequency = 50 MHz.</u>
Answer:
28500 years
Explanation:
Applying,
A = A'()............... Equation 1
Where A = Original mass of Carbon-14, A' = Final mass of carbon-14 after decaying, x = total time, y = half-life.
From the question,
Given: A = 1 g, A' = 31.3 mg = 0.0313 g, y = 5700 years.
Substitute these values into equation 1
1 = 0.0313()
= 1/0.0313
= 31.95
≈ 32
≈ 2⁵
Equating the base and solve for x
x/5700 ≈ 5
x ≈ 5×5700
x ≈ 28500 years
The drawing is correct because there are 12 atoms of each type on each side of the arrow.
