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lord [1]
3 years ago
12

Which characteristics both generally decrease when the elements in Period 3 on the Periodic Table are considered in order from l

eft to right?
(1) nonmetallic properties and atomic radius
(2) nonmetallic properties and ionization energy
(3) metallic properties and atomic radius
(4) metallic properties and ionization energy
Chemistry
1 answer:
Lelechka [254]3 years ago
8 0

Answer : Option 2) Nonmetallic properties and ionization energy


Explanation : It is observed that the nonmetallic properties and the ionization energy when the elements in period 3 on the periodic table are considered in order from left to right.


Various changes are observed when we move from left to right in period 3 in the modern periodic table like the atomic number and charge on the nucleus increases , number of valence electrons increases , atomic radius decreases , first ionization energy increases , electro negativity increases except in Ar, elements found on the left are metals and elements on the right are non-metals, so non metallic character increases.

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D. they exchanged electrons

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2 years ago
Para la siguiente reacción química demuestre que cumple con la Ley de la Conservación de la Materia. Recuerde que debe justifica
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Answer:

In this chemical reaction, which is considered irreversible, that is why the reaction arrow is ONE and unidirectional and not two in opposite directions, which means reversibility of the reaction.

In summary, if we look closely at the reaction, we observe that the stoichiometric values are balanced in the reaction, therefore there is THE SAME AMOUNT OF REAGENTS AS PRODUCTS.

This phenomenon has to be met in ALL CHEMICAL REACTIONS, the stoichiometric balance is essential for this reaction to be well expressed.

Why is stoichiometric balance so important? Why we indicate that we have the same amount of reagents as products, means that NOTHING IS LOST, EVERYTHING IS TRANSFORMED in the matter of the organic compounds that reacted.

Explanation:

Although if we observe the stoichiometric values well they are not correct with respect to oxygen, therefore it would be necessary to correct that in the chemical reaction, but above we briefly explain why the balancing of the reactions and the relationship they have with the conservation of the mass.

The law of conservation of mass indicates that mass is never lost, but is transformed, like energy, considering that it happens in terrestrial life.

4 0
3 years ago
10. Which would make the best aquifer?
Levart [38]

c. sandstone in the zone of saturation

Explanation:

The best aquifer of all is a sandstone in the zone of saturation. An aquifer is a porous and permeable formation where groundwater can accumulate.

  • To be a good aquifer, a rock or soil must be porous and permeable.
  • Porosity is the amount of void spaces present in a rock.
  • Permeability is the inter-connectivity of the pore spaces.

The zone of saturation is the zone below the water table where water is always present underground.

  • Sandstones have high porosity and permeability.
  • They are good aquifers when found at the zone of saturation.

Learn more:

Sedimentary rocks brainly.com/question/9131992

#learnwithBrainly

6 0
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B) brings order to the elements. This is correct because elements are in order by highest atomic number.
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The diagram below shows part of the rock cycle.
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The answer is igneous
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