Answer:
n = 5 to n = 6 absorption
n = 9 to n = 6 emission
n = 6 to n = 4 emission
n = 6 to n = 7 absorption
Explanation:
According to the Bohr's model of the atom. An electron in an atom may absorb energy and move from a lower energy level to a higher energy level. This requires absorption of energy that is equal to the energy difference between the two levels.
Similarly, an electron may move from a higher to a lower energy level, releasing energy that is equal to the energy difference between the higher and the lower level. This is known as emission.
Hence, if the electron is moving from a lower energy level to a higher energy level, an absorption has taken place, e.g n = 5 to n = 6
When an electron moves from a higher energy level to a lower energy level, an emission has taken place e.g n = 9 to n = 6
Answer:
A
Explanation:
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Answer:
C3F7
'Tri' means 3
Tricarbon means 3 carbon
"Hepta" means 7
Fluoridez molecular formula is "F"
hence F7
Answer:
The bowling ball with mass 8 pounds has greater acceleration.
Explanation:
The acceleration on the objects is equal to the quotient of the force applied on it and its mass. From Newton's second law of motion, we have;
F = ma
where F is the force on the object, m is its mass and a is its acceleration.
⇒ a =
Let us assume that a force of 50 N was applied on the two bowling balls.
Thus;
mass of the first bowling ball = 8 pounds = 3.62874 kg
So that,
50 = 3.62874 x a
a =
= 13.779
The acceleration of the first ball is 13.78 m/.
For the second ball of mass = 13 pounds = 5.8967 kg
So that,
50 = 5.8967 x a
a =
= 8.4793
The acceleration of the second ball is 8.48 m/.
Therefore, the bowling ball with mass 8 pounds has greater acceleration.