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Evgesh-ka [11]
2 years ago
10

All the actinoids, atomic number 89 through 103 have seven electron orbits. True False

Physics
1 answer:
Pie2 years ago
7 0
Answer is: true.
Actinoids are in 7 period in Periodic table and valence orbit is 7s².
Ac - [Rn] 6d¹ 7s².
Th - [Rn] 6d² 7s².
Pa - [Rn] 5f² 6d¹ 7s².
U - [Rn] 5f³ 6d¹ 7s².
Np - [Rn] 5f⁴ 6d¹ 7s².
Pu - [Rn] 5f⁶ 7s².
Am - [Rn] 5f⁷ 7s².
Cm - [Rn] 5f⁷ 6d¹ 7s².
Bk - [Rn] 5f⁹ 7s².
Cf - [Rn] 5f¹⁰ 7s².
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2 years ago
How do you find the oscillation period in seconds for different pendulum lengths?
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To find:

The equation to find the period of oscillation.

Explanation:

The period of oscillation of a pendulum is directly proportional to the square root of the length of the pendulum and inversely proportional to the square root of the acceleration due to gravity.

Thus the period of a pendulum is given by the equation,

T=2\pi\sqrt{\frac{L}{g}}

Where L is the length of the pendulum and g is the acceleration due to gravity.

On substituting the values of the length of the pendulum and the acceleration due to gravity at the point where the period of the pendulum is being measured, the above equation yields the value of the period of the pendulum.

Final answer:

The period of oscillation of a pendulum can be calculated using the equation,

T=2\pi\sqrt{\frac{L}{g}}

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