Advertisements
Advertisements
प्रश्न
Draw the structure of the following atoms showing the nucleus containing – protons, neutrons and the orbits with the respective electron:
Carbon [At. no. = 6, Mass no. = 12]
Advertisements
उत्तर
Structure of atoms:
Z is Atomic Number and A is the mass number
Carbon \[\ce{^12_6C}\]
Z = 6 = p = e
K L
e = 6 = 2, 4
A = p + n
12 = 6 + n
∴ n = 12 − 6 = 6
APPEARS IN
संबंधित प्रश्न
Explain the Mass number with example.
Tick the most appropriate answer.
Which of these have similar chemical properties but different set of physical properties and mass number?
- isobars
- elements
- isotopes
- none of these
In group I of the periodic table, three elements X, Y, and Z have ionic radii 1.33 Å, 0.95 Å and 0.60 Å respectively. Giving a reason, arrange them in the order of increasing atomic number in the group.
What is the significance of atomic numbers in the modern Periodic Table?
The atomic number and mass number of sodium are 11 and 23 respectively. What information is conveyed by this statement?
Match the atomic numbers 4,8,10,15 and 19 with the following:
Element with 6 valence electrons
Draw the structure of the following atoms showing the nucleus containing – protons, neutrons and the orbits with the respective electron:
Sodium [At. no. = 11, Mass no. = 23]
Differentiate mass number from atomic number.
Explain the following terms.
- Proton
- Electron
- Neutron.
‘A’ is denoted by ______.
