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Arisa [49]
3 years ago
9

rank the group 1a elements tested in order of increasing energy emission when electrons returns to the ground state. explain thi

s pattern in terms of changes in energy levels.
Chemistry
1 answer:
labwork [276]3 years ago
3 0

<em>Answer:</em>

  • The increasing order of energy emission is as follow
  •                               Li < Na < K < Rb < Cs

<em>Explanation:</em>

  • The Characteristic colors of alkali metals are
  •                   Li-crimson<em> red</em>
  •                   Na- golden<em> yellow</em>
  •                    K- pale <em>violet</em>
  •                    Rb and Cs- <em>violet</em>
  1. These flame color show that when we moved from down the group, the wavelength decreases (frequency increases).
  2. As the color of Li is red that shows ,it has less emission energy as compare to Rb and Cs that have color violet (more emission energy).
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When the following molecular equation is balanced using the smallest possible integer coefficients, the values of these coeffici
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The values of the coefficients would be 4, 5, 4, and 6 respectively.

<h3>Balancing chemical equations</h3>

The equation of the reaction can be represented by the following chemical equation:

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2 years ago
100 POINTS! Final Honor Activity Question
castortr0y [4]

The change in temperature had the greatest effect at changing the volume of the balloon.

<h3>What are the gas laws?</h3>

The gas laws are used to describe the parameters that has to do with gases.

Given that;

P1 = 98.5 kPa

T1 = 18oC or 291 K

V1 =  74.0 dm3

P2 =  7.0 kPa

V2 = ?

T2 = 18oC or 291 K

P1V1/T1 = P2V2/T2

P1V1T2 =P2V2T1

V2= P1V1T2/P2T1

V2 =  98.5 kPa *  74.0 dm3 * 291 K/ 7.0 kPa * 291 K

V2 = 1041.3 dm3

When;

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T2 = 80oC or 353 K

V1/T1 = V2/T2

V1T2 = V2T1

V2 = V1T2/T1

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V2 = 1263 dm3

The change in temperature had the greatest effect at changing the volume of the balloon.

Given that

V1 =  100 cm^3

T1 = 273 K

P1 = 1.01 * 10^5 Pa

V2 = ?

P2 =  3.00 x 10^-4 Pa

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V2= P1V1T2/P2T1

V2 =  1.01 * 10^5 Pa * 100 cm^3 * 255 K / 3.00 x 10^-4 Pa * 273 K

V2 = 3.14 * 10^10 cm^3

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What is the Ground state electron configuration for lead?
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Hey <span>wademcelroy2005, thanks for submitting your question to Brainly!

The answer to your question is </span><span>B:Radiation moves from a warmer object to a cooler object</span>
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