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GuDViN [60]
3 years ago
13

¿qué propiedades tomó en cuenta John Newlands para clasificar los elementos de la tabla periódica?

Chemistry
1 answer:
liubo4ka [24]3 years ago
8 0

Answer:

John Newlands propuso su ley de octavas en 1864 en la que organizó todos los elementos conocidos en ese momento en una tabla en orden de masa atómica relativa. Cuando hizo esto, descubrió que cada elemento era similar al elemento ocho lugares más adelante.

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Calculate the number of Cl atoms that are in 1.1 x 10^-21 moles of Cl atoms.
Margarita [4]

According to Avogadro's number there are 62.53 atoms of chlorine in 1.1x 10^-21 moles of Cl atoms.

<h3>What is Avogadro's number?</h3>

Avogadro's number is defined as a proportionality factor which relates number of constituent particles with the amount of substance which is present in the sample.

According to the definitions, Avogadro's number depend on determined value of mass of one atom of those elements.It bridges the gap between macroscopic and microscopic world by relating amount of substance with number of particles.

Number of atoms can be calculated using Avogadro's number as follows: mass/molar mass×Avogadro's number or number of moles×Avogadro's number.

ON substitution in above formula number of atoms=1.1×10²¹×6.023×10²³=62.53 atoms

Thus, there are 62.53 chlorine  atoms in 1.1x 10^-21 moles of Cl atoms.

Learn more about Avogadro's number,here:

brainly.com/question/11907018

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6 0
1 year ago
What are the products formed when a base reacts with an acid?
brilliants [131]
It would become a salt 
5 0
3 years ago
Most crude oil is delivered from terminals to refineries by
dmitriy555 [2]
C underground pipelines

5 0
3 years ago
Read 2 more answers
The molar mass of BeBr2 is
valentina_108 [34]

Answer:

168.812 g/mol

Explanation:

atomic mass. of Be= 9.012

atomic mass of Br= 79.90

because there is a 2 after Br you double the atomic mass

79.90(2)= 159.8

To find the molar mass add the atomic masses of each element

9.012+159.8=168.812

3 0
4 years ago
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Which of the following models give the volume of a molecule?
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Space filling model

Explanation:

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