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What number is used to determine how many electrons are in a neutral atom?
The number used to determine how many electrons are in a neutral atom is the atomic number, which is the number of protons in the nucleus of the atom. In a neutral atom, the number of electrons is equal to the number of protons, thus balancing out the positive charge of the protons with the negative charge of the electrons.
What does it mean for an atom to be neutral?
It means that the atom has no charge (not positive or negative). This is because there are an equal number of protons and electrons in the atom. When an atom has a charge it is called an ion.
What are the Three basic subatomic particles?
The three sub-atomic particles are:# Proton # Electron # NeutronAtoms are made up of Electrons, Neutrons, and Protons. These subatomic particles are known to be made up of even smaller particles. Particle accelerators are being used today to discover more of these particles.
How many protons electrons and neutrons are present in calcium chloride?
In calcium chloride, there are 20 protons (from calcium), 20 electrons (neutral atom), and varying number of neutrons depending on the isotope of calcium used. Chloride ions have 18 electrons each, giving the compound a charge of -1.
Description of an atom?
There are multiple conceptual models and mapping of the atom. Elementary models use visual maps of the proton, neutron and electron. Other maps use mathematical equations to describe quantum theory and subatomic particles.
What number is used to determine how many electrons are in a neutral atom?
The number used to determine how many electrons are in a neutral atom is the atomic number, which is the number of protons in the nucleus of the atom. In a neutral atom, the number of electrons is equal to the number of protons, thus balancing out the positive charge of the protons with the negative charge of the electrons.
What does it mean for an atom to be neutral?
It means that the atom has no charge (not positive or negative). This is because there are an equal number of protons and electrons in the atom. When an atom has a charge it is called an ion.
An atom that has equal number of protons and electrons is called what gas is used in exchange?
NeutralNeutral, or in other words has no charge.
What does it mean if atom has a neutral charge?
The term 'neutral charge' is meaningless, if an atom is neutral then it has no charge if it has charge then it can not be neutral. 'Neutral' means that it will not be deflected in an elecromagnetic field. Particles inside atoms are either electrically neutral (neutrons) or are 'charged' (protons and electrons). being charged means that they would be affected by an electrical field. If an electrical field is applied to either protons and electrons, they are deflected in opposite directions. Therefore protons and electrons have opposite charges. The convention is that protons have a '+' charge, and the electrons a '-' charge, although any suitable description (up/down, black/white, left/ght etc) could be used as long as one description was the opposite of the other. All atoms are neutral, as they have the same number of + protons as - electrons in them. If an atom loses or gains one or more electrons it becomes iteslf charged and is then known as an 'ion'.
What are the Three basic subatomic particles?
The three sub-atomic particles are:# Proton # Electron # NeutronAtoms are made up of Electrons, Neutrons, and Protons. These subatomic particles are known to be made up of even smaller particles. Particle accelerators are being used today to discover more of these particles.
Why are only protons and neutrons used to calculate atomic mass?
Protons and neutrons are used to calculate atomic mass because they are the fundamental components located in the nucleus of an atom. Electrons are much lighter and are not included in the atomic mass calculation because their mass is negligible compared to protons and neutrons.
What are the three properties you could use to distinguish a proton from an electron?
Protons are positively charged particles, electrons have negative charge.Protons are found inside the nucleus of an atom, electrons are found outside the nucleus of an atom. Protons have a mass of 1.00728 amu, electrons have a mass of 0.0005486 amu
How many protons electrons and neutrons are present in calcium chloride?
In calcium chloride, there are 20 protons (from calcium), 20 electrons (neutral atom), and varying number of neutrons depending on the isotope of calcium used. Chloride ions have 18 electrons each, giving the compound a charge of -1.
Why is charge unit not used in cyclotron?
The Coulomb unit of charge is defined as what is transported by a steady current of 1 Ampere in 1 second. A cyclotron uses a high frequency alternating current to accelerate particles. Therefore, by the definition of a charge unit, it is impossible for a Coulomb to exist within a cyclotron while it is operational.
Can the mass number of an element be used to determine the number of electrons in an atom?
No, the mass number of an element represents the total number of protons and neutrons in the nucleus, but it does not provide information about the number of electrons. The number of electrons in a neutral atom is equal to the number of protons in the nucleus.
What makes an object positively or negatively charged?
Step one. Charge the electroscope by the induction method. A rod is used of opposite sign to that required on the electroscope . The rod is brought near to the cap so that the leaf diverges by the amount desired, and the electroscope is momentarily earthed by touching it with a finger. The rod is then removed, leaving the electroscope charged. (If the charged rod used is Benoite this leaves a positively charged electroscope, if a glass rod is used then the result is negatively charged electroscope) Step two Now use the object of unknown charge, A charge of the same kind as that on the electroscope will cause an increase while a charge of the opposite kind will cause a decrease in leaf divergence when the object is brought near to the electroscope. You must bring the object down from a good height, and move it slowly down towards the cap so any change in divergence will not be overlooked before the object becomes to close to the cap. Bringing the object down too quickly and too close to the cap could lead to a false reading. Source(s): A. F. Abott Ordinary Level Physics
Atomic mass represents the weight of an atoms protonsneutronsand electrons however the atomic mass is generally used to refer to just the number of protons and neytrons why?
Each electron weighs only about 0.0005 atomic mass unit, but protons and neutrons weigh 1 atomic mass unit each. Since there are the same number of protons, and usually even more neutrons, in an atom as there are protons, the weight of the electrons can be neglected in most chemical calculations.
