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Electrons are negatively charged particles that orbit the nucleus of an atom, while protons are positively charged particles found in the nucleus. Electrons are much smaller and lighter than protons. In an atom, the number of protons determines the element, while the number of electrons determines its charge.
a proton has a positive charge. It is located inside the nucleus, whereas an electron has a negative charge and revolves outside the nucleus in the electron cloud. The negative and positive charges attract each other strongly.
Some basic facts:
- Protons are found in the nuclei of atoms.
- They carry a charge equal but opposite to the charge on an electron (in S.I. units it is approximately 1.602 x 10-19 Coulomb).
- They have a mass about 1800 times as great as the electron (around 1.673 x 10-27 kg).
- They are thought to be composed of three quarks (two "up" quarks and one "down" quark) held together by the exchange of massless gluons.
- The charge radius of the proton is around 1 femtometre, which is about 25000 times less than the mean radius of a hydrogen atom.
- All atoms have both electrons and protons (if they didn't they would be subatomic particles not atoms)
- Electrons and protons have opposite charges
- If the electrons and protons are matched in number, you have a neutral atom. If they are not, then you have an ion.
- If the electrons and protons of an atom are matched in number you have a specific element, no matter how many neutrons are present. Different numbers of neutrons are what distinguish one isotope of an element from another isotope of the same element.
True. Protons have a positive charge while electrons have a negative charge and neutrons have no charge at all.
A proton has a positive charge and is inside the nucleus. The electron has a negative charge and revolves outside the nucleus. The system looks like the Solar System.
. True or false? Protons have a positive charge, electrons have a negative charge, and neutrons have no charge *
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Do atoms lose protons but seldom lose or gain electrons?
Atoms typically do not lose protons because that would change the identity of the element. Instead, atoms can lose or gain electrons to form ions with a different charge. Protons are not generally lost by atoms in chemical reactions.
When atoms are at rest what do they have an equal number of?
When atoms are at rest, they have an equal number of electrons and protons, giving them a neutral charge.
If the number of electrons and protons are not the same what do you call this?
When the number of electrons and protons are not the same in an atom, it becomes an ion. An atom becomes positively charged if it loses electrons (more protons than electrons), and negatively charged if it gains electrons (more electrons than protons).
How many electrons and protons does uranium contain?
Uranium typically contains 92 protons and 92 electrons.
Do protons have positive charge neutrons have negative charge and electrons have no charge?
No, protons have positive charge, electrons have negative charge and neutrons have no charge
What has to be true about the protons and the electrons on an atom that is neutrral?
In any atom,there are protons, neutrons and electrons. As the name would suggest, neutrons carry no charge. Protons carry a positive charge and electrons carry a negative charge. So in an atom that has no charge there has to be an equal number of protons and electrons.
Is it true that the unequal sharing of electrons occur when an atom's protons have a greater pull on the shared electrons?
no
If an atom has 49 protons how many electrons does it have?
A neutral atom with 49 electrons will have 49 protons. The number of protons and electrons are always the same in a neutral atom. If the number of protons is not matched by the number of electrons, then the atom is charged and is called an ion. Further, if protons outnumber electrons, the atom is positively charged and is a positive ion. For situations where electrons outnumber protons, the opposite is true. The element with 49 protons in it is indium, by the way.
What is true of sulfide ion?
it has 2 more electrons than protons.
What must be true of the number of protons and the number of electrons in an atom if the atom has no charge?
The number of protons must equal the number of electrons in an atom for it to have no charge. Protons are positively charged particles, and electrons are negatively charged particles. A balanced number of protons and electrons results in an atom with a neutral overall charge.
Is it true that Unlike protons or neutrons electrons have no mass?
no electrons have mass, about 1/1800 that of a proton or neutron.
Is it true that electrons and protons of an atomo are located in the nucleus?
no the only thing located in the nucleus are neutrons and protons. Electrons rotate around the nucleus in orbitals or electron clouds.
Is it true that the number of electrons in an element is the same for all neutral atom of that element?
Yes, this is true for electrons (and protons) of all neutral atoms of an element.
What statements are true about nitrogen and oxygen?
they are both made of protons, neutrons, and electrons
How many protons and electrons are in phosphorus?
Phosphorus has 15 protons and 15 electrons.
True or false a surface that loses electrons becomes positively charged?
True. When a surface loses electrons, it becomes positively charged because it has more positively charged protons compared to the negatively charged electrons.
Is this true Beryllium atoms have 4 protons and 4 electrons?
In most cases, yes beryllium has 4 protons and 4 electron, but this is only beryllium in neutral form. There is also an ion of beryllium though which has 4 protons and 2 electrons.
