Advertisements
Advertisements
प्रश्न
Name the sub-atomic particles.
Advertisements
उत्तर
Proton, Electron, Neutrons.
APPEARS IN
संबंधित प्रश्न
Tick the most appropriate answer.
Who discovered that radioactive rays are given out by uranium?
- Henri Becquerel
- Marie Curie
- Pierre Curie
- Schmidt
Define:- Molecule
Write the names of `("NH"_4)_2"SO"_4` compounds:
Define: Relative atomic mass
What does an atom consist of ? Explain.
Give the charge and the mass of an electron, proton and neutron present in an atom ?
Name the particle or particles you would expect to find in :
The orbit of an 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?
Fill in the following blanks with suitable words :
In water, the proportion of oxygen and hydrogen is .............. by mass.
Is it possible to see atoms these days ? Explain your answer.
An atom of element E contains 3 protons, 3 electrons and 4 neutrons :
(a) What is its atomic number?
(b) What is its mass number?
(c) Write the electronic configuration of the element E.
(d) State whether element E is a metal or non-metal. Why?
(e) What type of ion, cation or anion, will be formed by an atom of element E? Why
(f) Write the symbol of the ion formed by an atom of element E.
(g) What could element X be?
Draw diagrams representing the atomic structures of the following:
- Sodium atom
- Chlorine ion
- Carbon atom
- Oxygen ion
Draw the basic structure of an atom representing its –
- Subatomic particles
- Nucleus
- Orbits or shells.
Select the correct answer to the statement given below:
The basic unit of matter is not capable of independent existence.
Define the term ions or radicals.
Atoms of different elements having ______ mass numbers, but ______ atomic numbers are called isobars.
Atoms of one element can be transmuted into atoms of other elements by ______
A small block slides down on a smooth inclined plane, starting from rest at time t = 0. Let Sn be the distance travelled by the block in the interval t = n – 1 to t = n. Then, the ratio `S_n/(S_(n + 1))` is ______.
