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2 years ago

Atoms of different chemical elements can be differentiated based on the number of.

Chemistry

1 answer:

Alona [7]2 years ago

3 0

The atoms of different chemical elements can be differentiated based on the number of protons.

Each chemical element is differentiated by his number of protons. This number of protons is also knowing as atomic number and it is represented by the letter (Z).

The atomic number represented the number of protons in the nucleus of an element. For example:

The element that has only 1 proton in his nucleus is Hydrogen atom.
The element that has 2 protons in his nucleus is Helium atom.

The atom is the smallest part of the composition of matter, it is indivisible and is composed of a nucleus that has protons and neutrons, and around the nucleus there are the electrons.

Learn more about the atom at: brainly.com/question/17545314

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Answer:

divergent

Explanation:

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4 years ago

things required for life, including heat, water, nutrients, salts and oxygen are called "___________ substances."

Contact [7]

Answer:

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Explanation:

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4 years ago

I do not understand this question if someone could help please

zzz [600]

$\bold{\huge{\blue {\underline{ Answer}}}}$

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2 years ago

Water has a vapor pressure of 23.8 mm Hg at 25°C and a heat of vaporization of 40.657 kJ/mol. Using the Clausius-Clapeyron equat

zubka84 [21]

Answer:

P = 559.553 mmHg

Explanation:

Clasius-Clapeyron:

Ln(P2/P1) = - ΔHv/R [ 1/T2 - 1/T1 ]

∴ P1 = 23.8 mmHg = 3.173 KPa

∴ T1 = 25°C ≅ 298 K

∴ ΔHv = 40.657 KJ/mol

∴ R = 8.314 E-3 KJ/K.mol

∴ T2 = 96°C ≅ 369 K

⇒ Ln P2/P1 = - (40.657 KJ/mol/8.314 E-3 KJ/K,mol) [(1/369 K) - (1/298 K) ]

⇒ Ln P2/P1 = - (4890.185 K) [ - 6.457 E-4 K-1 ]

⇒ Ln P2/P1 = 3.1575

⇒ P2/P1 = 23.511

⇒ P2 = (23.511)(3.173 KPa)

⇒ P2 = 74.601 KPa = 559.553 mmHg

6 0

3 years ago

The formation of CsCl from Cs(s) and Cl2 (g) involves the following steps:

scoray [572]

Explanation:

1) $Cs(s)\rightarrow Cs(g)$

Energy will be absorbed by the Cs(s) to get converted into Cs(g). In order to break the strong association of particles present in solid to convert it into gaseous state energy will be needed. So, energy will be absorbed by the Cs solid in this reaction.

2) $\frac{1}{2}Cl_2(g)\rightarrow Cl(g)$

Energy will be absorbed by $Cl_2$ gas in order to break bond between two Cl atoms to form isolated(alone) single chlorine atom.So, the energy will be absorbed by the chlorine gas molecule in this reaction.

3) $Cs(g)\rightarrow Cs^+(g)+e^-$

Energy will be absorbed by the Cs(g) to get converted into $Cs^+(g)$ cation. In order to remove an electron from the outer most shell of Cs atom energy will be required by Cs atom, So, energy will be absorbed in this reaction.

4) $Cl(g)+e^-\rightarrow Cl^-(g)$

Energy will get release in formation of $Cl^-$ anion from Cl atom in gaseous state. Chlorine atom need one electron to attain noble gas configuration. So, when an electron is added to the outer most shell of chlorine it attains stability of fully filled outermost shell by which it releases energy on addition of an electron.

5) $Cs^+(g)+Cl^-(g)\rightarrow CsCl(s)$

Energy will get release on formation of CsCl(s) from $Cs^+$ cation and $Cl^-$ anion. since both are oppositely charged ion and due to strong electrostatic interaction will get converted into stable molecule of CsCl (s) with release in an energy.

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4 years ago