Advertisements
Advertisements
Question
Draw the atomic diagram of the following element showing the distribution of – protons, neutrons and the electrons in the various shell of the atom.
Oxygen – \[\ce{^16_8O}\]
[The upper number represent the – mass number and the lower number represent the – atomic number e.g. calcium – mass number = 40, atomic number = 20]
Advertisements
Solution
Oxygen – \[\ce{^16_8O}\]
Atomic number Z = p = e = 8
Mass number A = p + n
16 = 8 + n
∴ n = 16 − 8 = 8
O
8 = 2, 6
(K, L)
APPEARS IN
RELATED QUESTIONS
Explain the Atomic number with example.
Multiple Choice Questions
The sum of number of protons and number of neutrons present in the nucleus of an atom is called its
WRITE SHORT ANSWER
Define the atomic mass number of an atom.
If an atom ‘A’ has mass number 35 and atomic number 17, state the number of protons, electrons and neutrons it contains.
State why the atomic weight of an element is also termed relative atomic mass.
Draw the atomic diagram of the following element showing the distribution of – protons, neutrons and the electrons in the various shell of the atom.
Carbon – \[\ce{^12_6C}\]
[The upper number represent the – mass number and the lower number represent the – atomic number e.g. calcium – mass number = 40, atomic number = 20]
The diagram represents an isotope of hydrogen [H]. Answer the following:
Atomic no. = 1
Mass no. = 1
Are isotopes atoms of the same element or different elements.
Explain the following terms.
- Proton
- Electron
- Neutron.
Every atom has an equal number of protons and electrons. The nature of the atom is ______.
The No. of electrons in the outermost shell of the atom of an inert gas ______.
