Structure of Atom
Trending Questions
Who discovered atom first?
The maximum number of electrons that can be accommodated in the 4th energy
32
18
2
8
Which is the smallest unit of matter? Atom or particle?
Which of the following are matter?
Chair, air, love, smell, hate, almonds, thought, cold, cold drink, smell of perfume.
Which of the following are matter ? chair , air , love , smell , hate , almonds , thought , cold , cold-drink , smell of perfume.
For the above question , the answer given is :
chair, air, almonds, cold-drink.
But my teacher said that smell of perfume is also a matter.
Is it correct?
- protons
- neutrons
- anions
- cations
State the location of electrons, protons and neutrons in an atom.
Why is smell of a perfume not considered as a matter?
Difference between atomic mass and atomic number
An atom that gains electrons becomes a negatively- charged ion called ______________
Arrange the following as per the instructions given in the brackets:
Mg, Cl, Na, S, Si ( decreasing order of atomic size).
- 3
- 2
- 4
- 8
Is heat , cold , smell and smell of perfume a matter
In a reaction 5.0 grams of calcium carbonate on heating gave 2.8 grams of calcium oxide and 2.2 grams of carbon dioxide, showing that these observations are in agreement with the law of conservation of mass.
Central part of the atom where neutrons and protons are held together is known as
Name the three subatomic particles present in an atom?
Which forces hold together neutrons and protons in the nucleus?
Electrical Forces
Nuclear Forces
Gravitational Forces
Frictional Forces
Explain: The nucleus of an atom carries a positive charge.
Is an atom bigger than a neutron
Name the unit in which the radius of an atom is usually expressed.
Name the three subatomic particles of an atom. Write their symbols and charges.
The radius of an oxygen atom is 0.073 nm. What does the symbol 'nm' represent?
Chair, air, love, smell, hate, almonds, thought, cold-drink, smell of perfume.
- True
- False
(a) What is the nucleus of an atom and what is the nature of charge on it?
(b) Name the scientist who discovered the nucleus of an atom.
Oxygen has 3 isotopes of atomic mass 16, 17, 18 respectively. Explain why they have same chemical properties, they are all electrically neutral.
Is it possible for the atom of an element to have one electron, one proton, and no neutron? If so, name the element.
We were told that maximum number of electrons in the last shell is given by the formula 2n2 . But we were also told it at the maximum number of electrons the last I can accommodate is 8.But acoording to the formula 3rd shell can accomodate 18 electrons. Please explain
