Digital currency reversal

1. It's almost impossible to return it. Be careful, there are many digital currency frauds.

2. It can be downloaded directly from various application platforms! Network search number blockchain can also be downloaded.

3.

For atoms: the number of electrons and protons is the number of elements. For example, h is element 1, which contains one electron and one proton

The neutron number should know the mass number. If you haven't learned this yet, the mass number can be simply regarded as the relative atomic mass, the number of neutrons = the relative atomic mass minus the number of protons. For example, if O is element 8, it has eight electrons and eight protons. Relative to the atomic mass of 16, the number of neutrons = 16-8 = 8

for ions, protons and neutrons are exactly the same as above, and electrons change, gain more and lose less. The method is similar

the number of electrons outside the nucleus = atomic number = proton number inside the nucleus = nuclear charge number (the number of electrons outside the nucleus of an ion = atomic number (sum) - charge number)

the maximum number of electrons held by each electron layer is 2n ^ 2 (n is the electron layer number). The number of electrons in the outermost layer is not more than 8 (when the k layer is the outermost layer, it is not more than 2). There are no more than 18 electrons in the second outer layer and 32 electrons in the last three layer

the extranuclear electrons are always arranged in the electron layer with the lowest energy first, and then from the inside to the outside, they are arranged in the L layer and then in the m layer. The above four laws are interrelated and cannot be understood in isolation

extended data:

neutrons exist in neutron stars as clusters (neutron stars are one of the few possible endpoints after supernova explosions e to gravitational collapse at the end of star evolution.) In the middle. The neutrons in the solar system mainly exist in all kinds of nuclei, and the neutrons in the elements are very rare β Decay is a change in which the neutron in the element releases an electron to become an element of the previous element sequence

Neutrons can be classified according to their velocities. High energy (high-speed) neutrons have the ability to ionize and penetrate deep into matter. Neutrons are the only ionizing radiation that can make other substances radioactive. This process is called "neutron excitation"“ "Neutron excitation" is widely used in the proction of radioactive materials in medical, academic and instrial fields

High energy neutrons can travel very long distances in air. Neutron radiation needs to be masked by hydrogen rich materials, such as concrete and water. Nuclear reactor is a common neutron source, and water is used as an effective neutron shield

arrangement rule:

1. The electrons are arranged in different layers from the nucleus to the nucleus, and the energy is from low to high

The maximum number of electrons in each layer is 2n2 (n is the number of electron layers)

There are no more than 8 electrons in the outermost layer (no more than 2 in the first layer), no more than 18 electrons in the second outer layer and no more than 32 electrons in the last three layers

In general, the electrons are always in the lowest energy layer, that is, the first layer, when the first layer is full, then the second layer, when the second layer is full, then the third layer

4. Out of memory

5.

Digital currency carrier is digital currency wallet. Digital currency is an alternative to paper money. Functions and properties are exactly the same as banknotes, but the form is digital

as long as you and I have digital wallets on mobile phones, we don't even need the network. As long as the mobile phone has power and two mobile phones touch each other, we can transfer the digital currency in one person's digital wallet to another person

Therefore, it can be seen that the use of digital currency will be more secure

In addition, digital currency has unique coding, and there is no way to forge it. Moreover, the digital currency may generate traceable information codes, including the identity information of the owner of the wallet. In this way, as long as the digital currency is spent or transferred, it is very easy to trace

even in the future, if big data and Internet of things technology are further upgraded, where you spend digital currency may be traceable, including spending a few yuan and so on, which can be easily known and traceable

in this case, your mobile phone is lost. On the one hand, it is difficult for the person who finds it to crack many passwords on the mobile phone. If the person who finds it takes a lot of effort to break the password, then if he wants to spend money or transfer money, it is also traceable