Advertisements
Advertisements
Question
Atomic models have been improved over the years. Arrange the following atomic models in the order of their chronological order
- Rutherford’s atomic model
- Thomson’s atomic model
- Bohr’s atomic model
Options
(i), (ii) and (iii)
(ii), (iii) and (i)
(ii), (i) and (iii)
(iii), (ii) and (i)
Advertisements
Solution
(ii), (i) and (iii)
Explanation -
Thomson’s atomic model, followed by Rutherford’s model which is followed by Bohr’s model.
APPEARS IN
RELATED QUESTIONS
WRITE SHORT ANSWER
What is radioactivity?
Define:- Atom
Write the names of `("NH"_4)_2"SO"_4` compounds:
Fill in the blank
An ion with positive charge is called ______
Name the particles which revolve around the nucleus.
Name three non-metals/radicals which have valency -1, -2, and -3.
Name the particle or particles you would expect to find in :
The nucleus of an atom
An atom has 13 protons and 14 neutrons.
How many electrons would be present in this atom ?
Fill in the blank
A charged particle is called an _____
What is the usual symbol for (a) and electron (b) a proton, and (c) a neutron?
What is an atom ? How do atoms usually exist ?
Compare:
Chlorine atom and chloride ion, with respect to
Atomic structure
Electrical state
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
Which element will gain electron?
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
Which will form negative ion?
State the meaning of the term – (a) atom, (b) molecule, (c) radical – with a suitable example.
The electronic structure [configuration] of fluorine can be written as 2, 7. In a similar way give the electronic configuration of aluminium
The basic unit of matter is ______.
State true or false. If false, correct the statement.
The basic unit of an element is molecule.
Define the following term with an example.
Metal
The graphite refill used is pencil is made of element called ______.
