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Novosadov [1.4K]
3 years ago
11

Which of the following elements has the lowest electronegativity?

Chemistry
1 answer:
just olya [345]3 years ago
7 0
A) K is the element with the lowest electronegativity

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Difference between intermediate and activated complex​
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The activated complex is an unstable (unobserved) structure corresponding to an energy maximum in the reaction profile. An intermediate is the chemical structure present at the transition state. An activated complex can not be isolated or observed in a chemical reaction.

Explanation:

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An element consists of 1.40% of an isotope
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I think it's lead (pb). Hope this helps.

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1. The atomic number deceases by one and the atomic mass is unchanged - β⁺/positron emission. In this a proton is converted to a neutron, hence no net change in mass. Since a proton is converted to neutron, the daughter nuclide's proton number /atomic number decreases by 1. Then atomic number decreases by 1 and no change in mass.

2.the atomic number decreases by two, and the atomic mass decreases by four - alpha decay / ⁴₂α. alpha particles have 2 neutrons and 2 protons. Since 2 protons and 2 neutrons are emitted, the mass of the nuclide decreases by 4. Since 2 protons have been emitted, this results in atomic number decreasing  by 2.

3.<span>the atomic number increases by one, and the atomic mass remains unchanged. - </span>β⁻ beta decay. In this type of decay - beta decay , a neutron is converted to a proton, therefore no net change in mass. Since a proton is formed, atomic number increases by 1. Therefore atomic number increases by 1 and no change in mass.
8 0
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Hunter is copying an angle. His work so far follows. Explain the importance of his next step. Which is drawing A-line through A
forsale [732]

Answer:

its c ma man .

This is the other ray that will make up the angle ∠AYZ and will complete the constructioExplanation:

if your taking the quick check these were my awnsers

1.c

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3.d

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for the copying an angle quick check only

6 0
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Draw a sketch of a cross section of a graduated cylinder illustrating the proper method for reading the volume
vekshin1

Answer:

in reading volume - you read from the bottom of the meniscus, which is the curve formed from the liquid in the graduated cylinder. Most graduated cylinders are in ml, so measure in the most accurate reading.

Explanation:

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3 years ago
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