What is the modification of the Dalton's atomic theory

2 answers:

3 0

Part two of Dalton's theory had to be modified after mass spectrometry experiments demonstrated that atoms of the same element can have different masses because the number of neutrons can vary for different isotopes of the same element.

mina [271]3 years ago

3 0

Answer:

Dalton's theory had to be modified after mass spectrometry experiments demonstrated that atoms of the same element can have different masses because the number of neutrons can vary for different isotopes of the same element

You might be interested in

Given that the density of water is 1.00 g/mL, the density of toluene is 0.867 g/mL, and the density of chloroform is 1.48 g/mL,

12345 [234]

Answer:
Top-Toluene
Middle-Water
Bottom-Chloroform

Explication:
Chloroform is on the bottom layer because it is the densest liquid.
Toluene is on the top because it is the least dense.
Water is between the two because it’s density is between chloroform and toluene.

4 0

3 years ago

What volume will 50.2 grams of co2 (g) occupy at stp?

Genrish500 [490]

Number of moles of CO2 =
Mass /Ar
= 50.2 / (12 + 32)
1.14 mols

For every 1 mol of gas, there will be
24000 cm^3 of gas

Vol. = 1.14 x 24 dm^3
= 27.36 dm^3

8 0

3 years ago

element m is a metal and its chloride has the formula mcl2. to which group of the periodic table does m most likely belong

Triss [41]

It will belong to the metals because metals bond with nonmetals like chlorine to form ionic compounds

3 0

2 years ago

Read 2 more answers

What is the difference between a molecule and a compound?!

KiRa [710]

molecules can be made of two of the same elements whereas a compound is always made of two different elements

3 0