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Lina20 [59]
3 years ago
11

The atomic nucleus does not contain ____________, which are negatively charged subatomic particles.

Chemistry
1 answer:
Allisa [31]3 years ago
3 0
Only protons and neutrons are found in the nucleus of an atom. Electrons reside in orbitals surrounding the nucleus.
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I put 40 points on this!!! PLEASE HELP!! I NEED AN A OR MY MOM IS GONNA KILL ME!
pshichka [43]
Hi there!

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3 years ago
How have ideas about the atom changed in the last two centureies?
dsp73
In the past a scientist named dalton produced an atomic theory. There were certain problems regarding his views. So, later on scientists like chadwick, rutherford and thompson added some fresh light for the real identification of the atom.
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8 0
4 years ago
We identify nucleic acid strand orientation on the basis of important chemical functional groups. These are the _________ group
zloy xaker [14]

Answer:

We identify nucleic acid strand orientation on the basis of important chemical functional groups. These are the <u>phosphate</u> group attached to the 5' carbon atom of the sugar portion of a nucleotide and the <u>hydroxyl</u> group attached to the <u>3'</u> carbon atom

Explanation:

Nucleic acids are polymers formed by a phosphate group, a sugar (ribose in RNA and deoxyribose in DNA) and a nitrogenous base. In the chain, the phosphate groups are linked to the 5'-carbon and 3'-carbon of the ribose (or deoxyribose) and the nitrogenous base is linked to the 2-carbon. Based on this structure, the nucleic acid chain orientation is identified as the 5'-end (the free phosphate group linked to 5'-carbon of the sugar) and the 3'-end (the free hydroxyl group in the sugar in 3' position).

3 0
3 years ago
The molecule carbon disulfide CS2 is nonpolar and has only london dispersion forces between the molecules.Carbon tetrachloride C
SSSSS [86.1K]

Answer:- Melting point of [tex[CCl_4[/tex] is higher than CS_2 where as the vapor pressure of CS_2[/tex[ is higher than [tex]CCl_4 .

Explanations:- Since both the molecules are non polar, the forces of attraction for carbon tetrachloride are comparatively stronger as it's a bigger molecule. We know that, stronger are the forces of attraction, higher is the melting point as more heat is required to break the bonds.

Stronger are the forces of attraction, lower is the vapor pressure as the molecules are more tightly bonded and less molecules goes to the gas phase.

So, melting point of carbon tetrachloride is higher but it's vapor pressure is lower as compared to carbon disulfide.

3 0
4 years ago
Read 2 more answers
Atomic number and atomic mass
Alexeev081 [22]

Answer:

Together, the number of protons and the number of neutrons determine an element's mass number: mass number = protons + neutrons. If you want to calculate how many neutrons an atom has, you can simply subtract the number of protons, or atomic number, from the mass number.

Explanation:

hope it help u make me brainlist

5 0
3 years ago
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