EASY
Earn 100

Who proposed the Modern Atomic Theory in the year 1803?

50% studentsanswered this correctly

Important Questions on Atomic Structure

EASY
Science>Chemistry>Atomic Structure>Modern atomic model
Extra-nuclear region contains:
EASY
Science>Chemistry>Atomic Structure>Modern atomic model
The central part of an atom is called nucleus.
EASY
Science>Chemistry>Atomic Structure>Modern atomic model
An atom is electrically neutral.
EASY
Science>Chemistry>Atomic Structure>Modern atomic model
The smallest unit of an element that cannot be divided further is _____.
EASY
Science>Chemistry>Atomic Structure>Modern atomic model
Where is the nucleus of an atom situated?
EASY
Science>Chemistry>Atomic Structure>Modern atomic model
The _____ of an atom is very hard and dense. (nucleus/ electron)
EASY
Science>Chemistry>Atomic Structure>Modern atomic model
Protons and neutrons are collectively known as
HARD
Science>Chemistry>Atomic Structure>Modern atomic model

Give the salient features of "Modern atomic theory". 
 

EASY
Science>Chemistry>Atomic Structure>Modern atomic model
What are the orbits or shells of an atom?
EASY
Science>Chemistry>Atomic Structure>Modern atomic model
Nucleus has no charge, it is neutral in nature.
EASY
Science>Chemistry>Atomic Structure>Modern atomic model
From the periodic table, how will you find out the atomic number and mass number of an element?
HARD
Science>Chemistry>Atomic Structure>Modern atomic model
Name three fundamental particles of an atom. Give the symbol with charge, on each particle.
EASY
Science>Chemistry>Atomic Structure>Modern atomic model
Neutrons are _____ particles having mass equal to that of protons. (neutral/ positive/ negative)
EASY
Science>Chemistry>Atomic Structure>Modern atomic model
Copper has an atomic number of 29 and an atomic mass of 63.55. How will you represent it?
EASY
Science>Chemistry>Atomic Structure>Modern atomic model
According to the modern atomic model, an atom can be divided into three regions.
MEDIUM
Science>Chemistry>Atomic Structure>Modern atomic model
An atom on the whole has a positive charge.
EASY
Science>Chemistry>Atomic Structure>Modern atomic model
_____ is the smallest part that take part in chemical reactions.
EASY
Science>Chemistry>Atomic Structure>Modern atomic model
Protons and _____ together are called nucleons.
EASY
Science>Chemistry>Atomic Structure>Modern atomic model
The number of electrons in an atom is equal to the number of
MEDIUM
Science>Chemistry>Atomic Structure>Modern atomic model
Define Nucleons.