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Copper is used instead of gold because gold is way to expensive and not practical.

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8y ago

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The nucleus and all electrons in an atom?

That would be called the atom itself since it consists of the nucleus and one or more electrons


Is copper conduct electricity a chemical change or a physical change?

It's neither since the copper isn't changing at all. Electrons are just flowing through the copper atoms.


How many electrons spin around a helium nucleus?

To be in a neutral state (which it normally is since it is a noble gas) it must have two electrons spinning around its nucleus.


What would react more vigorously with water strontium or calcium?

Strontium. They both have two electrons in their outermost energy level, however since the electrons are farther from the nucleus in Strontium than in Calcium, Strontium is more readily able to shed these two electrons to achieve a more stable state with it's outermost energy level being complete (with 8 electrons).


An ion that has three more protons in the nucleus than there are electrons outside the nucleus will have a charge of?

An ion that has three more protons in the nucleus than there are electrons outside the nucleus will have a charge of +3.


How many electrons orbit a nucleus of n-13?

The isotope nitrogen-13 (n-13) has an atomic number of 7, meaning it has 7 protons in its nucleus. Since it is neutral, it also has 7 electrons orbiting the nucleus. Therefore, nitrogen-13 has 7 electrons.


How many protons neutrons and electrons does Ru have?

Ruthenium (Ru) has 44 protons and 57 neutrons in its nucleus. Since it is a neutral atom, it also has 44 electrons surrounding the nucleus.


What is the charge of the atoms nucleus is you have 11p 12n and 11 electrons?

The charge of an atom's nucleus is determined by the number of protons it contains since protons have a positive charge. In this case, with 11 protons, the nucleus has a total charge of +11. Electrons, which are negatively charged, balance this charge, but they are not part of the nucleus. Therefore, the charge of the nucleus remains +11, regardless of the number of electrons present.


Why do electrons keep moving around the nucleus of the atom and not fly away?

Since the electrons are negatively charged and the nucleus is positively charged due to presence of protons, they attracted towards each other by the electrostatic force of attraction and thus electrons keep revolving around the nucleus and do not run away


Why electrons near the nucleus having less energy as that of higher shells?

That's actually not quite how it works, you're probably going by an outdated model of the atom. It is true that the probability of finding the electron at a larger distance from the nucleus tends to be larger for electrons with higher energy... the reason why should be fairly obvious: they have more energy to overcome the electromagnetic attraction between the (negative) electron and the (positive) nucleus.


How many protons and electrons are in the nucleus of a chlorine atom?

A single chlorine atom has 17p+ (Protons) and 17e- (Electrons). Chlorine will form a 171- anion by gaining one electron, completing the valence shell as an octet.


How many electrons on carbon 14?

Carbon-14 has 6 protons and 8 neutrons in its nucleus, making it an isotope of carbon. Since it is a neutral atom, it also has 6 electrons, which balance the positive charge of the protons in the nucleus.