“Element”的概念、定义、翻译、参考文献-科学参考

A substance that cannot be reduced any further by chemical means. It is a pure chemical substance composed of atomswith the same atomic number (i.e. the same number of protonsin its nucleus). There are 92 naturally occurring elements on Earth, and all chemical matter consists of these elements (although a further 25 have been discovered as products of artificial nuclear reactions). Elements with atomic numbers 83 or higher are inherently unstable, and undergo radioactive decay. The list of elements is usually shown in the form of a Periodic Table, in order of their atomic number (see box at right, or click ther source link for a more detailed interactive Periodic Table).

单词	Element
释义	Element A substance that cannot be reduced any further by chemical means. It is a pure chemical substance composed of atomswith the same atomic number (i.e. the same number of protonsin its nucleus). There are 92 naturally occurring elements on Earth, and all chemical matter consists of these elements (although a further 25 have been discovered as products of artificial nuclear reactions). Elements with atomic numbers 83 or higher are inherently unstable, and undergo radioactive decay. The list of elements is usually shown in the form of a Periodic Table, in order of their atomic number (see box at right, or click ther source link for a more detailed interactive Periodic Table).
随便看	demography DEMSER denaturation Dendrid dendrite dendritic cell dendritic cell-autologous lung tumor vaccine dendritic cell-CEA peptide vaccine dendritic cell-gp100-MART-1 antigen vaccine dendritic cell-idiotype-keyhole limpet hemocyanin vaccine dendritic cell-MART-1 peptide vaccine dendritic cell-precision multiple antigen T lymphocytes dendritic cell-targeting lentiviral vector ID-LV305 dendritic cell vaccine denenicokin denial denibulin hydrochloride denileukin diftitox denileukin diftitox denintuzumab mafodotin denitrification denomination denosumab de novo de novo mutation