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Citrus2011 [14]
3 years ago
15

Why do electrons enter the 4s orbital before entering the 3d orbital?

Chemistry
2 answers:
LUCKY_DIMON [66]3 years ago
8 0
C. Because as it get farther from the nucleus the amount of energy is decreasing
salantis [7]3 years ago
7 0

Answer:

C. because the 4s orbital is at a lower energy level

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Which of the following is an example of a molecule?
3241004551 [841]

Answer:

The answer is B. A hydrogen atom forms a convalent bond.........

5 0
2 years ago
A gas has an initial volume of 10 L and an initial pressure of 0.8 atm. If the pressure decreases to 0.3 atm, what will be the n
dimulka [17.4K]

Answer:

Gas pressure is measured in units such as torr, mmHg, atm, and Pa. ... You can see mass is small, Volume is large. - hense a small ... The pressure increases if volume decreases. ... For each of the following changes of the initial balloon, select ... A sample of nitrogen (N2) has a volume of 60.0 L at a pressure of 725 mmHg.

Explanation:

4 0
3 years ago
A ballerina weighs 103 lbs and is up on her toes with only 10.0 cm2 of her slippers in contact with the floor. What pressure is
Ahat [919]

Answer:

A

Explanation:

1 lb = .453 kg...so...103 x .453 = 46.72 kg  

you then multiply that by the force of gravity which is 9.8(m/s2)...so...  

46.72 x 9.8 = 458 newtons(kg x m/s^2), which is the force.  

pressure (in pascals) = Force(N) / Area (m2)  

we need to convert 10cm2 to m2 which = .001m^2  

458 / .001 = 458000 = 4.58 x 10^5 Pa

8 0
3 years ago
Read 2 more answers
Which of the following is not a part of the ideas john dalton proposed in his model
NNADVOKAT [17]

The following which is not a part of  Dalton atomic theory is the properties of atoms of the same elements can be different . Thus option B is correct.

<h3>What is Dalton atomic theory?</h3>

Dalton has proposed his theory in three parts and each part stated that

The first portion of his theory asserts that all stuff is made up of indivisible atoms.

According to the second section of the theory, all atoms of a given element have the same mass and characteristics.

Compounds, according to the third section, are combinations of two or more different types of atoms.

Dalton has given three laws

  • Law of conservation of mass
  • Law of definite proportion
  • Law of multiple proportion

Thus, the following which is not a part of  Dalton atomic theory is the properties of atoms of the same elements can be different . Thus option B is correct.

To learn more about Dalton atomic theory, refer to the link below:

brainly.com/question/11855975

#SPJ1

Your question is incomplete, but your complete question was

which of the following is not a part of the ideas john dalton proposed in his model

A. All matter is composed of indivisible atoms.

B. The properties of atoms of the same element can be different.

C. Compounds form when atoms combine in whole number ratios.

D. An atom can neither be created nor destroyed.

4 0
11 months ago
A bicycle completed the first 400.0 m of a ride in 86.8 s. What was the bicycle's average speed in kilometers per hour?
konstantin123 [22]

Answer:

16.6 km/h  

Step-by-step explanation:

Speed = distance/time

           = 400.0 m/86.8 s

           = 4.608 m/s               Convert kilometres to metres

Speed = 4.608m/s × (1 km/1000 m)

           = 0.004 608 km/s     Convert seconds to hours

Speed = 0.004 608 km/s × (3600 s/1 h)

           = 16.6 km/h

3 0
3 years ago
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