Subject: Chemistry
Book: General Chemistry
The periodic table evolved from attempts to classify elements based on their atomic masses and properties. Dmitri Mendeleev’s 1869 arrangement left gaps for undiscovered elements, predicting their properties with remarkable accuracy. Later, Henry Moseley’s work on atomic numbers refined the table’s order. The periodic table remains central to chemistry, guiding research in discovering new elements and understanding chemical trends.
What is the chemical formula for carbon tetrachloride?
View QuestionWhat is the chemical formula for glucose?
View QuestionWhich element has the atomic number 26?
View QuestionWhat is the chemical formula for methanol?
View QuestionWhich element is represented by the symbol 'Fe'?
View QuestionWhat is the chemical formula for hydrochloric acid?
View QuestionWhich element is represented by the symbol 'K'?
View QuestionWhat is the chemical formula for acetic acid?
View QuestionWhich element is used in thermometers?
View QuestionWhich element is primarily used in stainless steel?
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