China One Child Policy Facts

China One Child Policy Facts For more than 35 years, Chinas one-child policy  limited the countrys population growth. It ended after 2015, as Chinas demographics had been skewed due to the policy. China does not have enough  young people to support the aging demographics, and due to a preference for boys, men of marrying age outnumber women. In all, there were more than 33 million men than women in China in 2016, making it difficult for men of lower socioeconomic status to marry at all. After 2024, India is expected to become the worlds most populous, when both countries populations are expected to reach about 1.4 billion. Chinas population is forecast to be stable and then decline slightly after 2030, and India will keep growing. The Background Chinas one-child rule was created in 1979 by Chinese leader Deng Xiaoping to temporarily limit communist Chinas population growth. It was in place until January 1, 2016.  When the  one-child  policy was adopted in 1979, Chinas population was about 972 million people.  China was expected to achieve  zero population growth  by 2000, but it actually achieved that seven years earlier.   Whom It Affected Chinas one-child policy most strictly applied to Han Chinese living in urban areas of the country. It did not apply to ethnic minorities throughout the country. Han Chinese represented more than 91 percent  of the Chinese population. Just over 51 percent of Chinas population lived in urban areas. In rural areas, Han Chinese families could apply to have a second child if the first child was a girl. For families who observed the  one-child  rule, there were rewards: higher wages, better schooling and employment, and preferential treatment in obtaining governmental assistance (such as health care) and loans. For families who violated the  one-child  policy, there were sanctions: fines, wage cuts, employment termination, and difficulty in obtaining governmental assistance. Families who  were permitted to have a second child usually had to wait from three to four years after the birth of the first child before conceiving their second child. The Exception to the Rule One major exception to the one-child rule  allowed two singleton children (the only offspring of their parents) to marry and have two children. Additionally, if a first child was born with birth defects or major health problems, the couple was usually permitted to have a second child. The Long-Term Fallout   In 2015 China had an estimated 150 million single-child families with an estimated two-thirds of those thought to be a direct result of the policy. Chinas sex ratio at birth is more imbalanced than the global average. There are about 113 boys born in China for every 100 girls. While some of this ratio might be biological (the global population ratio is currently about 107 boys born for every 100 girls), there is evidence of sex-selective abortion, neglect, abandonment, and even infanticide of infant females. The recent peak total fertility rate for Chinese women was in the late 1960s, when it was 5.91 in 1966 and 1967. When the one-child rule was first imposed, the total fertility rate of Chinese women was 2.91 in 1978. In 2015, the total fertility rate had dropped to 1.6 children per woman, well below the replacement value of 2.1. (Immigration accounts for the remainder of the Chinese population growth rate.)

Facts About Hydrogen, Atomic Number One on the Periodic Table

Facts About Hydrogen, Atomic Number One on the Periodic Table Hydrogen is the element that is atomic number 1 on the periodic table. The element number or atomic number is the number of protons present in the atom. Each hydrogen atom has one proton, which means it has a 1 effective nuclear charge. Basic Atomic Number 1 Facts At room temperature and pressure, hydrogen is a colorless, odorless gas.While ordinarily classified as a nonmetal, the solid form of hydrogen acts like other alkali metals in the same column of the periodic table. Hydrogen metal forms under intense pressure, so it is not seen on Earth, but it does exist elsewhere in the solar system.The pure element bonds to itself to form diatomic hydrogen gas. This is the lightest gas, although it is not significantly lighter than helium gas, which exists as a monatomic element.Element atomic number 1 is the most abundant element in the universe. In terms of a sheer number of atoms, about 90% of atoms in the universe are hydrogen. Because the element is so light, this translates into around 74% of the universe by mass.Hydrogen is extremely flammable, but it doesnt burn without the presence of oxygen. If you were to place a lit match into a container of pure hydrogen, the match would simply go out, not cause an explosion. Now, if it was a mixture of hydrogen and air, the gas would ignite! Many elements can exhibit a variety of oxidation states. While atomic number 1 usually displays a 1 oxidation state, it can also pick up a second electron and exhibit a -1 oxidation state. Because two electrons fill the s subshell, this is a stable configuration. Atomic Number 1 Isotopes There are three isotopes that all have atomic number 1. While an atom of each isotope has 1 proton, they have different numbers of neutrons. The three isotopes are proton, deuterium, and tritium. Protium is the most common form of hydrogen in the universe and in our bodies. Each protium atom has one proton and no neutrons. Ordinarily, this form of element number 1 has one electron per atom, but it readily loses it to form the H ion. When people talk about hydrogen, this is the isotope of the element usually being discussed. Deuterium is a naturally occurring isotope of element atomic number 1 that has one proton and also one neutron. Since the number of protons and neutrons is the same, you might think this would be the most abundant form of the element, but its relatively rare. Only around 1 in 6400 hydrogen atoms on Earth are deuterium. Although its a heavier isotope of the element, deuterium is not radioactive. Tritium also occurs naturally, most often as a decay product from heavier elements. The isotope of atomic number 1 is also made in nuclear reactors. Each tritium atom has 1 proton and 2 neutrons, which is not stable, so this form of hydrogen is radioactive. Tritium has a half-life of 12.32 years.