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4 years ago

What is the best reason why Cs is most reactive metal ?

Chemistry

1 answer:

marishachu [46]4 years ago

3 0

Explanation:

Caesium is a highly electropositive metal found in the first group on the periodic table.

Electropositivity is a measure of the readiness of an atom to lose electrons. It is related to the ionization energy and electronegativity of an element.

The ionization energy is the energy required to remove the most loosely bond electron in an atom.
The lower the ionization energy the lower the electronegativity.
The more electropositive or metallic it will be.
Metals found on the left ofthe periodic table are the most reactive metal in the lower left corner. This where caesium is found.

Learn more:

Electronegativity brainly.com/question/7007192

#learnwithBrainly

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Rank the elements in each of the following sets in order of increasing IE₁:

zavuch27 [327]

Explanation:

Ionization energy is defined as the energy required to remove the most loosely bound electron from a neutral gaseous atom.

When we move across a period from left to right then there occurs a decrease in atomic size of the atoms. Therefore, ionization energy increases along a period.

But when we move from top to bottom in a group then there occurs an increase in size of the atoms. Hence, ionization energy decreases along a group.

(a) As Sb, Sn and I are all period 5 elements. Hence, these elements are arranged in order of increasing $IE_{1}$ as follows.

Sn < Sb < I

(b) As Sr, Ca, and Ba are all elements of group 2a. Hence, these elements are arranged in order of increasing $IE_{1}$ as follows.

Ba < Sr < Ca

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3 years ago

Ecosystems do not have similar climates and every plant is different True or false

Soloha48 [4]

This is false. Some plants are the same or at least very similar

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2 years ago

If the temperature changes in a chemical reaction, what has occurred?

bazaltina [42]

Answer:

Energy was transferred

Explanation:

If the temperature changed, energy must have been added or lost, but not created. Energy can't be created or destroyed.

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3 years ago

What type of reaction is <br> CH 4 (g)+2O 2 (g) CO 2 (g)+2H 2 O(g)

tangare [24]

Answer: combustion

Explanation:

Combustion reactions can be identified by looking at the reactants and the products.

Usually, the reactants will be a hydrocarbon and oxygen. And the products will be CO2 and H2O

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3 years ago

What is the difference between electron configuration and valence electron configuration?

Ratling [72]

Valence election configuration is the electrons in the shell that equal to 8. it what forms chemcial bonds. Electron configuration is distribution of elections of an atom.

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3 years ago