What is the relative molecular mass of a compound which has empirical formula \(CH_{2}O\)? [C= 12, H= 1, O= 16]
Atoms are electrically neutral because they
Common Salt (NaCl) is used to preserve foods. Which of the following properties can be used to determine its purity before use?
Which of the following electron configurations represents the transition element Chromium \(_{24}Cr\)?
The atomic number of an isotope of hydrogen is equal to its mass number because it
