GK
GENERAL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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all lower case letters
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all capital letters
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always only one letter
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At least and ONLY one capital letter
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Detailed explanation-1: -Chemical symbols are the abbreviations used in chemistry for chemical elements, functional groups and chemical compounds. Element symbols for chemical elements normally consist of one or two letters from the Latin alphabet and are written with the first letter capitalised.
Detailed explanation-2: -Notice that the symbol for an element may be one or two letters, but the symbol for an element only has one capital letter! The second letter is always lower case. Compounds and molecules are made of two or more elements chemically bonded together.
Detailed explanation-3: -Within a sentence, the names of chemical elements are not capitalized, but the first letter of a chemical symbol should always be capitalized (e.g., “The sample contained calcium atoms” and “The sample contained Ca atoms”).