Advertisements
Advertisements
प्रश्न
Fill in the blank
An ion which has a positive charge is called a ..................
Advertisements
उत्तर
An ion which has a positive charge is called a cation .
APPEARS IN
संबंधित प्रश्न
The composition of the nuclei of two atomic species X and Y are given as under
| X | Y | |
| Protons | 6 | 6 |
| Neutrons | 6 | 8 |
Give the mass numbers of X and Y. What is the relation between the two species?
ÅIn 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.
Fill in the blanks- The number of protons in the nucleus of an atom is called its ....................
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 four shells
Define the term ‘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.
Draw the atomic diagram of the following element showing the distribution of – protons, neutrons and the electrons in the various shell of the atom.
Calcium – \[\ce{^40_20Ca}\]
[The upper number represent the – mass number and the lower number represent the – atomic number e.g. calcium – mass number = 40, atomic number = 20]
When an atom gives electrons from its outermost shell, it becomes ______ charged.
What are the letters A, Z, and X stand for?
