The positrons produced in a nuclear reaction are released when there is a transition within the nucl

There are a huge number of positive and negative charges within protons and neutrons, and the positive charge in the proton is 1 more than the negative charge, so the proton is positively charged. When a proton releases a positive charge, the number of positive and negative charges in the proton is the same, so it is no longer charged, and it becomes a neutron. Whereas, the neutron itself has the same number of positive and negative charges inside, so it is not charged.

When exposed to air, bare neutrons decay due to structural instability, and during the decay process, they release a number of substances, including a negative charge. The positive charge inside will be 1 more than the negative charge, so the neutron will become a proton after decay.

Finally, without affecting the stability of its own structure, a neutron or a proton can release positive and negative charges many times, which is the source of the energy released by multiple fusions from hydrogen to iron. However, the number of times you can release an electric charge is not infinite, just like a house, if you dig up a brick, it may not affect the stability of the house, but if you dig indefinitely, the house will definitely collapse. Therefore, the nucleus does not endlessly release electric charges, and when it reaches a critical point, its nuclear force, which maintains the stability of the proton and neutron structure, will prevent the charge from continuing to escape, and this element, which is composed entirely of protons and neutrons that have reached the critical point, is the iron nucleus.

Yes. p n+(e+), the masses on both sides of the equation are equal to 1=1, and the (negative) electrons are equal to x=(x+1)+(1).

Atoms are electrically neutral, with all positive charges and almost all of the mass of atoms concentrated in the nucleus, and negatively charged electrons revolving around the nucleus in the outer space of the nucleus. For an atom with atomic number z, the nucleus is positively charged +ze. The charge number of the nucleus is a strict integer that is equal to the number of protons inside the nucleus.

Protons are positively charged +e, which is equal to the charge of electrons.

The number of protons is equal to the number of nuclear cores is equal to the number of electrons, the number of nuclear cores is positive, and the number of electrons is negative.

The nucleus is made up of protons and neutrons, the neutron is uncharged, the proton has a positive charge of 1 unit, and the electron has a negative charge of 1 unit.

The unit charge is denoted as e, and the value of e is about c (c is the coulomb).

The nucleus of an uncharged atom is positively charged.

Hydrogen atoms are not charged.

The nucleus of the hydrogen atom has a unit positive charge of +1 and an electron has a unit of negative charge of -1

To correct it, physics does not stipulate that the charge carried by the nucleus is a positive charge, and the definition of charge is clearly stated in the electrostatic field of high school physics elective 3-1 (different provinces): silk rubbing glass makes the charge of the glass belt called a positive charge, and the fur rubbing rubber rod makes the charge of the rubber rod belt called a negative charge, and then there is no third charge in the world that can attract these two charges at the same time, so it is thought that there are only two charges, which are called positive and negative charges.

Solution: The phenomenon of particle scattering is a phenomenon in which particles hit gold leaf and are deflected by the Coulomb repulsion of the nucleus. Natural radiation is the spontaneous emission of particles or electrons from the nucleus of an atom; The photoelectric effect is when the outer electrons of the nucleus escape from the constraints of the nucleus; Atomic luminescence is formed by atomic transitions, which is the process by which electrons radiate energy by transitioning from a higher energy level to a lower energy level

a. The particle scattering experiment shows that there is a small nucleus inside the atom, and there is no change in the nucleus, so A is wrong;

b. The photoelectric effect is that the outer electrons of the nucleus escape from the constraints of the nucleus, and it does not involve the change of the nucleus, so B is wrong;

c. The phenomenon of natural radiation is the spontaneous emission of particles or electrons from changes inside the nucleus, resulting in decay or decay, and the number of nuclear nucleons, protons, and neutrons changes in the process of reaction, so C is correct;

d. Atomic luminescence is formed by atomic transition, that is, electrons transition from a high energy level to a low energy level, and the energy released is radiated out in the form of photons, which does not involve the change of the atomic nucleus, so D is wrong

Therefore, c1, uh... I haven't learned this yet, thank you, 2, a, scattering is divided into elastic scattering and inelastic scattering, the former rake the internal energy of the nucleus does not change, the latter rake the nuclear internal energy changes, but according to the title it seems that the internal changes of the atomic nucleus cause particle scattering, this statement is wrong, it can be said that the internal changes of the atomic nucleus may lead to decay.

b, the photoelectric effect is produced by the excitation of the outer electrons of the nucleus, which has nothing to do with the interior of the nucleus.

c, natural radiation phenomenon (probably not emitting, right?) Including the decay, absorption, scattering, etc., all of which are nuclear reactions, which are related to the nucleus itself.

d, put the nucleus in an excited state. 2. Among the following phenomena, the one related to the internal changes of the atomic nucleus is ( ).

a.Particle scattering phenomena.

b.Photoelectric effect phenomenon.

c.Natural radiation phenomenon.

d.Atomic luminescence phenomenon.

<> "This nuclear reaction led Chadwick to discover the neutron for the first time;

<> this nuclear reaction was Rutherford's first discovery of protons;

<>Phosphorus-30 radioisotope); <

(positron), a nuclear reaction that led to the first discovery of the positron by the Joliot-Curies.

That's right. It is a basic principle that the nucleus does not change in a chemical reaction.

To help you explain why the answer on the third floor is wrong, here's an example:

3O2 = 2O3 (condition is discharge) This is a chemical reaction, but the valence does not change, that is, the outermost electron does not change in the end.

Of course, there are many reactions in which some of the chemical valences will change, and these are redox reactions, that is, the outermost electrons are changed.

In summary, the number of electrons in the outermost shell of an atom may change.

In a chemical reaction, the nucleus is (unchanging) and only (the molecule) is changing.

Atoms (electrons) become (positively charged) (cations) when electrons are lost, and anions (negatively charged) are turned into electrons).

For example, the sodium atom (Na) loses 1 electron, forming a cation with 1 unit (positive charge).

The chlorine atom (Cl) gives 1 electron to form an anion with 1 unit (positive charge).

Oppositely charged sodium ions and chloride ions interact to form a new substance (sodium chloride) (NACI).

He is the main ingredient in the condiments on our table. There are also many substances like sodium chloride that are made up of ions, so ions are also a basic particle that makes up matter. In this way, we know that there are three basic particles that make up matter, and they are (molecules, atoms, ions).

No change.

The outermost electron.

Loss of electrons positive charge of cations.

Negative electronegative anion.

Positive charge of sodium ions.

Negatively charged with chloride ions.

Sodium chloride (NaCl).

Table salt molecules, atoms, ions.

Can I fill it in casually? Unchanged, Extranuclear electrons, Lost electrons, Positively charged, Ionic, Negatively charged, Ionic, Positively charged, Sodium ion, Negatively charged, Chloride ion, Sodium chloride (NaCl).

Table salt, atoms, molecules, ions. (Basically, it should be like this, empty one).

Immutable molecules.

Loss of electrons is electropositive of the cation.

Negative point anion.

Positive charge of cations.

Negative charge of negative ions.

Sodium chloride (NaCl).

The salt molecule is an atomic ion.

Invariant, electron, electron-loss, positively charged, cationic, negatively charged, anionic, positively charged, cationic, negatively charged, anionic, sodium chloride, table salt, molecule, atom, ionic.

Invariant movement of electrons.

Basic particles: atoms, molecules, ions.

d Although the electrons in decay are released from the nucleus, the electrons are not a component of the nucleus, which is composed of protons and neutrons, and the neutrons emit electrons when they decay into protons, and the equation for the decay of the old swim is According to the nature of the rays, the correct answer to this question can be judged to be the d term.

Answer: Because the charge carried by the nucleus in the hydrogen atom is positive, the charge carried by the one with 1 can also be written as 1The charge of the nucleus in the hydrogen atom is opposite, that is, it is negative, so the charge carried by the nucleus is 1

I also just finished it, whether LZ has it or not.

Wish: Academic progress is dissipated

Hope it solves your problem.