SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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S2Fe, Al, Sr, O
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C, Fe, Al, Sr
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h2o, C, Al, S
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c, fe, al, sr
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Detailed explanation-1: -Lithium, Beryllium, Sodium, Magnesium, Aluminium, Potassium, and Calcium are metals in the first twenty elements. Hydrogen, Helium, Carbon, Nitrogen, Oxygen, Fluorine, Neon, Phosphorous, Sulphur, Chlorine, and Argon are the non-metals in the first twenty elements.
Detailed explanation-2: -The Periodic Table of Chemical Elements arranges all of the known chemical elements in an informative array. Elements are arranged from left to right and top to bottom in order of increasing atomic number. Order generally coincides with increasing atomic mass. The rows are called periods.
Detailed explanation-3: -Hydrogen, helium, lithium, beryllium, and boron are the first five elements of the periodic table.
Detailed explanation-4: -H. Hydrogen. 1.0079. He. Helium. 4.0026. Li. Lithium. 6.941. Be. Beryllium. 9.0122. B. Boron. 10.811. C. Carbon. 12.0107. N. Nitrogen. 14.0067. O. Oxygen. 15.9994. More items