Question

धीसा
कक्षा लगने के पूर्ण
क्या- क्या
तेणारी
फरता
था​

Answer 1

In chemistry, an element is a pure substance which cannot be broken down by chemical means, consisting of atoms which have identical numbers of protons in their atomic nuclei. The number of protons in the nucleus is the defining property of an element, and is referred to as the atomic number.