The atomic number varies across different elements, with each element having a unique atomic number that corresponds to the number of protons in its nucleus.
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The atomic number of hydrogen is 1 because each hydrogen atom contains one proton in its nucleus.
The atomic number of an element corresponds to the total number of protons present in the nucleus of its atoms. It is represented by ‘Z’ in the periodic table.
The atomic number (denoted by ‘Z’) uniquely identifies each element and determines its chemical properties. Elements are defined by the number of protons they possess, which is reflected in their atomic number.
The mass number contributes to an atom’s stability, with isotopes having different mass numbers due to varying numbers of neutrons. Some isotopes may be more stable than others, depending on the balance between protons and neutrons in the nucleus.
The notation for an atom includes its atomic number (number of protons), mass number (sum of protons and neutrons), and the symbol of the element. For example, carbon-12 is represented as 12/6 C, where 6 is the atomic number, 12 ...
The mass number of an atom with 6 protons and 6 neutrons is 12.
The mass number (denoted by ‘A’) is calculated as the sum of the total number of protons and neutrons present in the nucleus of an atom. It represents the atom’s total mass.
Valency refers to an atom’s combining capacity, determining how many bonds it can form with other atoms. It plays a crucial role in predicting chemical reactions and the formation of compounds.
The valency of oxygen, determined by subtracting six electrons from eight, is two.