What number is radium on the periodic table?

Chemistry

2 answers:

Amanda [17]4 years ago

5 0

Answer:

Explanation:

castortr0y [4]4 years ago

3 0

Answer:

Explanation:

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Write a short historical account of the discovery of the Avogadro’s number. In this account, include the roles of Gay-Lussac, Av

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It was named Avagadro number for the reason that it was discovered by Amadeo Avagadro, it was named after his last name. The one who in reality initially evaluated the real number of particles in a given substance, was Josef Loschmid. Avagadro was a legal counselor who had an enthusiasm for it, and the reason the number is named after him was a direct result of a French physicist named Jean Baptiste Perrin. Perrin utilized the term as a result of Avagadro's enthusiasm for Brownian movement. What Avagadro had done was assembled everything that researchers had found to help clarify the varieties that existed amongst iotas and atoms. The mole unit is short for the German word molekulargewicht. It was to some degree an aggregate push to build up the idea. Every individual that is said to have found it, is an alternate individual, however these four individuals are the most pertinent

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3 years ago

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Help anyone????? Please

vivado [14]

Answer:

#1 is protons electrons and neutrons

their respective parts are center, positive ,and no charge

#2 is positive charge, chemical properties

#3 is the number of protons, characteristics, same

#4 is atomic mass, average atomic mass

#5 is mass number, nucleus

Explanation:

no need to say thank tou i know ur in class

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3 years ago

Identify whether each species functions as a Brønsted-Lowry acid or a Brønsted-Lowry base in this net ionic equation.CH3COO-+HCO

NARA [144]

Explanation :

According to the Bronsted Lowry concept, Bronsted Lowry-acid is a substance that donates one or more hydrogen ion in a reaction and Bronsted Lowry-base is a substance that accepts one or more hydrogen ion in a reaction.

Or we can say that, conjugate acid is proton donor and conjugate base is proton acceptor

The given equilibrium reaction is,

$CH_3COO^-+HCO_3^-\rightleftharpoons CH_3COOH+CO_3^{2-}$

In this reaction, $CH_3COO^-$ and $HCO_3^-$ are act as Bronsted Lowry base and acid respectively and $CH_3COOH$ and $CO_3^{2-}$ are act as Bronsted Lowry acid and base respectively.