CHEMISTRY HIGH SCHOOL

the valence electrons of metals jump easily to a higher energy orbital when light shines on them then they all fall emiting the excess energy as light which property of metals is explained by this?​

Answers

Answer 1
Answer:

The valence electrons of metals jump easily to a higher energy orbital when light shines on them then they all fall emitting the excess energy as light show lustrous  property of metals.

What are valence electrons?

Valence electrons are defined as a negatively charged particle that can be shared or transmitted between atoms that is found in the outermost shell of an atom. Valence electrons have a crucial role in determining how an atom will behave. The electrical configurations of elements can be used to find valence electrons. The total number of valence electrons in that element is then determined by counting the number of electrons in the outermost shell.

When newly treated, polished, or broken, a material takes on a bright look and conducts electricity and heat reasonably well. Metals are typically ductile and malleable. These traits are the result of the metallic bond that connects the atoms or molecules of the metal.

Thus, the valence electrons of metals jump easily to a higher energy orbital when light shines on them then they all fall emitting the excess energy as light show lustrous  property of metals.

To learn more about valence electrons, refer to the link below:

brainly.com/question/13993867

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Answer 2
Answer:

Answer:

Lustrous

Explanation:

Metals are lustrous which gives them a property of having Shiny surfaces

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Which of the following shows the correct setup in converting 234 kilopascals to torr?

Answers

1 Pascal is equal to 0.008 Torr. So if you have 234 kilopascals, then

234 kilopascals ( 1000 Pascals/ 1 kilopascals) (0.008 Torr / 1 Pascal) = 1,872 Torr

Which type of bond is present in hydrogen sulfide (H2S)? The table of electronegativities is given.

Answers

nonpolar covalent bond (with LD force)

Cell references in a formula are called _____.

Answers

Cell references in a formula are called electrode potentials. Electrode potentials are standard voltages for half-cell potentials. All half-cell potentials use the Standard Hydrogen Electrode (SHE) as a universal reference for redox reactions. For hydrogen, the standard electrode potential is zero for all temperatures.

Why is the reaction of Iron and hydrochloric acid slow ​

Answers

Answer:

The chloride formed when iron reacts with hydrochloric acid is iron (II) chloride, also known as iron dichloride. The reaction between iron and hydrochloric acid is slower than the reaction with zinc, with much smaller hydrogen bubbles produced.

Answer:  

The reaction of iron and hydrochloric acid is slow beacause When dilute Hydrochloric acid is added to iron filings, iron(II) chloride & hydrogen gas is produced. In this reaction iron displaces hydrogen from hydrochloric acid to form iron chloride & hydrogen gas this reaction is a single displacement reaction which reacts slowly.

Explanation:

What is the difference between neutralization and saturation?

Answers

Neutralization deals with the buffering or neutralizing of acids and bases. You change the pH of either an acid or a base by adding H+ ions to a base solution or adding OH- ions by adding a base(alkali) to an acid solution. Ideally you are neutralizing either one to a neutral pH condition which is "7" on the pH scale.

Saturation on the other hand deals with how much solute (solid) you can disolve in a solvent. As you add solute to solution it can only disolve a certain amount before the solvent becomes "satutated" and no more solute will desolve into a homogenous blend with the solvent. You then see precepitants start coming out of solution and falling to the bottom of the container the solution is contained in.

By the way...... what do those symbols for the elements have in common (for number 7-11): Pb, Au, Cu, Hg, Na ? *

Answers

Answer:

Na number of 11

Explanation:

Pb no. 82

Au no. 79

Cu no. 29

Hg no. 80

Answer:

those have symbols for their Latin or Greek name

Explanation:

hope it helps
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