Write electronic configuration of Potassium (K) using orbital notation & orbital diagram method.​

Answers 2

Answer:

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Potassium's atomic number is 19. This means that every atom of potassium has 19 protons in its nucleus.

In a neutral atom, the number of protons is equal to the number of electrons.

So the electron configuration of potassium will involve 19 electrons.

The full electron configuration of potassium is 1s2 2s2 2p6 3s2 3p6 4s1

The noble gas notation is [Ar]4s1

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Other related questions that may help you

write the rules of reflection​

Answer:

The three laws of reflection

i)The angle between the incident ray and the normal is equal to the angle between the reflected ray and the normal.

ii)The incident ray, the normal and the reflected ray are all in the same plane.

iii)Incident ray and refracted ray are on different sides of the normal.

Answer:

rules of reflection are--

1) angle of incidence is equal to angle of reflection..

2) incident ray reflected ray and the normal all lie on the same plane ..

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A train crosses an electric pole in 5 seconds and a railway bridge of 600m in 35 seconds. find speed of train and length of train​

Answer:

1350 m

Step-by-step explanation:

Given:

Time to cross the pole = 5 sec

Time to crosses the tunnel = 20 sec

Formula used:

Speed = Distance/Time

Calculation:

Let the length of the tunnel be x m and the length of the train be y m

Time = Distance/Speed

⇒ 5 = (y/90)

⇒ y = 450 m

Time to crosses the tunnel = Distance/Speed

⇒ 20 = (y + x)/90

⇒ 20 × 90 = (450 + x)

⇒ x = 1800 - 450 = 1350

∴ The length of the tunnel is 1350 m.

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Answer:

1350 m is the right answer.

Fill in the blanks of Tense :1)The earth ____ around the sun.(move/moves/moved/was moving)2)she _____ about his safety .(worried/is worried/worring/has worring)3)The dog _____its tail.(wag/is wagging/wagged)​

Answer:

1) moves.

2) is worried.

3) is wagging

Alex (has , has) two older brothers who played baseball as well .​

Answer:

Alex has two older brothers who played baseball as well.

Note: This sentence is only correct if the brothers are still alive.

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