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sesenic [268]
3 years ago
15

Modern atomic theory states that the atom is a diffuse cloud of ________ surrounding a small, dense nucleus.

Chemistry
2 answers:
spin [16.1K]3 years ago
3 0
Electrons, hence the electron cloud
skelet666 [1.2K]3 years ago
3 0

Answer:

Electron.

Explanation:

According to modern atomic theory, the electron position is not considered to be discrete  or fix. We say that there is probability of finding electron in particular area around the nucleus. so this we call as that atom is a diffuse cloud of electrons surrounding a small dense nucleus.

The electron density is maximum in shells.

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1 pentagram equals how many grams
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5 grams.

Explanation:

Anything that weighs 5 grams, technically, is a pentagram.

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An atom can be compared to our solar system because: WILL MAKE BRAINLIEST!
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Explanation:

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3 years ago
5.(a) Give the names and symbols of respective elements. (5)
Leya [2.2K]

Answer:

Elements:

Platinum - Pt

Silicon - Si

Lead - Pb

Hydrogen- H

Silver - Ag

Symbols:

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6 0
2 years ago
Calculate the volume of one mole of a gas at 1.00 atm pressure and 0 °C.
N76 [4]

Answer:

Solution:-

The gas is in the standard temperature and pressure condition i.e. at S.T.P

Therefore,

V

i

​

=22.4dm

3

V

f

​

=?

As given that the expansion is isothermal and reversible

∴ΔU=0

Now from first law of thermodynamics,

ΔU=q+w

∵ΔU=0

∴q=–w

Given that the heat is absorbed.

∴q=1000cal

⇒w=−q=−1000cal

Now,

Work done in a reversible isothermal expansion is given by-

w=−nRTln(

V

i

​

V

f

​

​

)

Given:-

T=0℃=273K

n=1 mol

∴1000=−nRTln(

V

i

​

V

f

​

​

)

⇒1000=−1×2.303×2×273×log(

22.4

V

f

​

​

)

Explanation:

6 0
3 years ago
According to the law of conservation of mass, the total mass of the reactants is
yarga [219]

Answer:

is equal to the total number of products

Explanation:

3 0
3 years ago
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