Does an atom have no overall charge if it contains equal numbers of electrons and protons?
This is correct. An atom with an equal number of electrons and protons is electrically balanced, and is electrically neutral. It will have no overall charge.
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By definition, atoms have no overall electrical charge. That means that there must be a balance between the positively charged protons and the negatively charged electrons. Atoms must have equal numbers of protons and electrons. In our example, an atom of krypton must contain 36 electrons since it contains 36 protons.
An atom has a tiny positively charge core called the nucleus which contains all of the atom's positive charge and most of its mass (99%). But the overall charge of an atom is zero. Atoms are made up of electrons, protons and neutrons. electrons have a charge of -1, neutrons are neutral and protons have a charge of +1. different atoms have different numbers of protons and neutrons and electrons, but in their normal state…
Because all electrons have a negative charge, whilst protons have a positive charge. Usually, there are equal numbers of each, meaning that the atom has no overall charge, as they cancel each other out. However, when an atom loses electrons, there are more positively charged protons than there are negatively charged electrons to cancel them out, so the atom has an overall positive charge.
Yes, this is essentially correct. The neutral atom is one that has the same number of electrons in orbitals about it as protons in its nucleus. The two charge groups, the positively charged protons and the negatively charged electrons, will "balance out" and give the atom an overall neutral (zero) charge.
The overall charge on an atom or ion is the sum of the protons and electrons. The overall charge of a lithium atom with 4 neutrons, 3 electrons, and 3 protons is zero. The sum of the 3- charge of the 3 electrons and the 3+ charge of the 3 protons is zero. The neutrons are not considered because they have no charge.
Atoms with unequal numbers of protons and electrons are called ions. In general, an ion is a charged particle, and if we have any atom that has an unequal number of protons and electrons, it has a charge imbalance, and will have an overall net charge. This charge will be positive if the number of electrons is less than the number of protons, or it will be negative if the number of electrons is more…
What is the mass number symbol and charge of an ion that contains 87 protons 136 neutrons and 86 electrons?
An ion that contains 87 protons is an ion of the element francium, with symbol Fr. Because the ion contains one fewer electrons than protons, it must have an electrical charge of +1. The mass number equals the sum of the numbers of protons and electrons, 223 in this instance. A proper symbol for the ion is therefore 223Fr+ , in which the "223" and "+" should both be superscripts.
Under normal circumstances, a conductor has no overall charge. Even though there are large numbers of free electrons available as charge carriers, for each free electron there is a corresponding proton within the atoms that make up the conductor. With equal numbers of protons and electrons, there is no overall charge.
Electrons have a relative charge of -1 whereas protons have a relative charge of +1. Since atoms are neutral and have no overall charge, the numbers of electrons and protons must be the same. If an atom gained electrons, it would have more electrons than protons and would be negatively charged. This is a negative ion. Also called anion. If an atom lost electrons, it would have more protons than electrons and would be positively…