Digital monetary policy foreign exchange gold
1. Legitimacy
the domestic futures market countries set up financial derivatives trading venues, which are composed of four exchanges, namely, China Gold Exchange, Shanghai Futures Exchange, big business exchange and Zheng business exchange, which are supervised and managed by China Securities Regulatory Commission, futures monitoring center and futures association according to law
except bitcoin, which has a perfect management mechanism, the management of other digital currencies is chaotic and belongs to non-governmental organizations. Governments have never recognized the legality of digital currencies. Credit is completely managed by the self-discipline of issuers and participants, which poses great risks
Domestic futures: 9:00-10:15 a.m., 10:30-11:30 p.m. and 13:30-15:00 p.m. from Monday to Friday (except holidays)digital currency: it can be traded 24 hours a day, and the trading time is in line with the international market
3. Proct selection
domestic futures: at present, there are dozens of futures varieties, and each variety has at least four months of contract, with standardized management and large trading volume, so it is difficult for funds to control the market
digital currency: the management is not standardized. Although many non-governmental organizations or indivials have set up a lot of digital currencies, the information is limited, and it is difficult to understand the situation of a certain digital currency. Some digital currencies have hierarchical relationship between the upper and lower families. Investing in a certain digital currency is a matter of luck, without any data as a reference
4, two-way trading
domestic futures, with its own leverage, can be two-way trading, long and short can be, t + 0 trading, after the profit can appear
digital currency: long by one side, and the so-called depletion of power resources to mine, the relationship between the superior and the subordinate profits
Hello, according to your question, at present, there is no saying that RMB can buy digital currency, so this should not happen
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 = 8for 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 shieldarrangement 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