Which Of The Following Comparisons Correctly Describes Subatomic Particles?, A. An Electron Has A Negative Charge And A Mass Larger Than The Mass Of A
Which of the following comparisons correctly describes subatomic particles?
A. An electron has a negative charge and a mass larger than the mass of a proton.
B. A neutron has a negative charge and a mass smaller than the mass of a proton.
C. A neutron has a neutral charge and a mass larger than the mass of an electron.
D. A proton has a positive charge and a mass smaller than the mass of an electron.
The following comparisons correctly describes subatomic particles :
C. A neutron has a neutral charge and a mass larger than the mass of an electron.
Further explanation
An atom is the smallest material consisting of a nucleus, which contains protons, neutrons, and electrons that surround it
Protons are positively charged (+1), electrons are negatively charged (-1). and neutrons are uncharged (neutral)
While the mass of 1 proton is equal to the mass of 1 neutron, equal to 1 amu and the electron has a mass smaller than both.
The hydrogen atom is the lightest atom whose mass is 1.67 x 10⁻²⁷kg (measured using a mass spectrometer) and simplified to 1 amu (atomic mass unit).
1 amu = 1,66.10⁻²⁴ grams
The mass of each basic particle :
- electron mass = 9.11.10⁻²⁸ grams
- proton mass = 1.6726.10⁻²⁴ grams
- neutron mass = 1,675.10⁻²⁴ grams
So electrons have the smallest mass compared to protons and neutrons
Then the correct answer should be :
A. An electron has a negative charge and a mass smaller than the mass of a proton.
B. A neutron has a neutral charge and have the same mass as a proton.
D. A proton has a positive charge and a mass larger than the mass of an electron
Learn more
The combination of atoms during chemical reactions
The difference between a calcium atom and a calcium ion
A carbon atom
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