Advertisements
Advertisements
Question
An atom has 13 protons and 14 neutrons.
What is the atomic mass of the atom ?
Advertisements
Solution
What is the atomic mass of the atom= 27
APPEARS IN
RELATED QUESTIONS
WRITE SHORT ANSWER
What is radioactivity?
Define:- Radicals
Write the names of `("NH"_4)_2"SO"_4` compounds:
Name the particle or particles you would expect to find in :
The nucleus of an atom
How is the size of an atom indicated ?
One nm is equal to :
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
Which will form negative ion?
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
What will be the charge present of the molecule XY after chemical combination?
Draw the basic structure of an atom representing its –
- Subatomic particles
- Nucleus
- Orbits or shells.
Define the following term with an example.
Metalloid
Atoms of one element can be transmuted into atoms of other elements by ______
Give the salient features of “Modern atomic theory”.
A change in the physical state can be brought about
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
The smallest unit of an element is ______.
The most abundant type of atom is the universe is ______.
What are the 3 most abundant atoms on the earth?
The ______ are combination of atoms of various elements or the same element.
The first scientific theory about atoms was given by J J. Thomson.
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 ______.
