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प्रश्न
Fill in the blank
An ion with negative charge is called _______
उत्तर
An ion with negative charge is called anion.
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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: Ions
Give two examples for each of ionic and covalent bond.
Name the particle or particles you would expect to find in :
The nucleus of an atom
Fill in the blank
A deficiency of electrons produces a ________ charge.
Why is it not possible to see an atom even with the most powerful microscope ?
How many times is a proton heavier than an electron?
Electron, proton, neutron are the types of ______ in an atom.
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
Which will form positive ion?
The basic unit of matter is ______.
State true or false. If false, correct the statement.
An atom is electrically neutral.
Assertion: An atom is electrically neutral.
Reason: Atoms have equal number of protons and electrons.
Define the following term with an example.
Compound
In the nucleus of `""_20"Ca"^40`, there are ______
A change in the physical state can be brought about
Does the solubility of a substance change with temperature? Explain with the help of an example.
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
Lead is also known as plumbum.
What is the fundamental particle of an element?
The ______ are combination of atoms of various elements or the same element.
