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pandamonium786
- 23
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Homework Statement
A neutral atom is known to have a nucleus with a positive charge of 2.4 x10-12 C. How many electrons does the atom have?
Homework Equations
q=Ne
The Attempt at a Solution
None
Greg Bernhardt said:What have you tried? Where are you stuck?
LittleMrsMonkey said:What does it mean that the atom is neutral?Let's start there.
Also,in case you aren't aware,the charge of the electron(e) is a given.
LittleMrsMonkey said:What information about the electrons can you gain from what you just said?
Are you sure the positive charge is 2.4×10-12 Coulombs? That's a lotta protons for one atom!pandamonium786 said:Homework Statement
A neutral atom is known to have a nucleus with a positive charge of 2.4 x10-12 C. How many electrons does the atom have?
Homework Equations
q=Ne
The Attempt at a Solution
None
You've just calculated a meaningless number. Which atom has 15 million electrons orbiting the nucleus?pandamonium786 said:1.5 x 10^7 electrons. Thank you so much I get it now. :D
Yeah, but the physics student should be aware of when he is calculating a reasonable result and when he is calculating nonsense.LittleMrsMonkey said:Well that's true,but I guess what matters is he understood how to get there.
The number of electrons in an atom depends on its atomic number, which is equal to the number of protons in its nucleus. This means that for neutral atoms, the number of electrons is also equal to the number of protons.
The atomic number of an element can be found on the periodic table. This number indicates the number of protons and electrons in an atom of that element. For example, carbon has an atomic number of 6, so it has 6 electrons.
No, the number of electrons is always equal to the atomic number for neutral atoms. However, atoms can gain or lose electrons to form ions, which will change the number of electrons.
No, the number of electrons can vary among different elements. For example, hydrogen has 1 electron, while oxygen has 8 electrons. Additionally, isotopes of the same element may have a different number of electrons due to a different number of neutrons in the nucleus.
Yes, atoms in the third period or higher on the periodic table can have more than 8 electrons in their outermost energy level, also known as the valence shell. These atoms are able to hold more than 8 electrons due to the presence of d-orbitals in higher energy levels.