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सी.आई.एस.सी.ई.आईसीएसई ICSE Class 7

An Atom Has 13 Protons and 14 Neutrons. What is the Atomic Number of the Atom ? - Chemistry

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प्रश्न

An atom has 13 protons and 14 neutrons.

What is the atomic number of the atom ?

एक पंक्ति में उत्तर
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उत्तर

What is the atomic number of the atom = 13

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अध्याय 4: Atoms, Molecules and Radicals - Additional questions

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सेलिना Concise Chemistry [English] Class 7 ICSE
अध्याय 4 Atoms, Molecules and Radicals
Additional questions | Q 20.1

संबंधित प्रश्न

MATCH THE COLUMNAS

1. Jpham  Dalton a. Neutrons
2. Atom b. Model of the atom
3. Chadwick c.The atomic theory of matter 
4. Rutherfrod d. Positively  charged 
5. Protons e. Electricity neutral 
6. Nuclear  fusion  f. Generator of electricity 
7.Gamma -rays  g. High penetrating power 
  h.Energy in sun 

Write the names of the elements present in the following compound.

Common salt


Write the names of the elements present in the:- 

Ammonia


Write the names of `"FeS"` compounds :


What is the maximum number of electrons present in:

1. first shell
2. second shell
3. third shell and
4. fourth shell


Why is it not possible to see an atom even with the most powerful microscope ?


For the symbols H, D and T, write the subatomic particles (protons, neutrons and electrons) found in each one of them.


Calculate the number of moles in 12.044 × 1025 atoms of phosphorus.


Define the following term:

Atom


Electron, proton, neutron are the types of ______ in an atom.


What is the contribution of the following in atomic structure?
Maharshi Kanada


Select the correct answer to the statement given below:

The smallest particle of a substance – capable of independent existence and which retains the characteristics of the substance.


Assertion: An atom is electrically neutral.

Reason: Atoms have equal number of protons and electrons.


Define – Atom.


An atom of an element has no electron. Will that atom have any mass or not? Can an atom exist without electron? If so then give example.


Define the following term with an example.

Compound


1 mole of Gold and Silver contain same number of atoms.


Does the solubility of a substance change with temperature? Explain with the help of an example.


An atom of Oxygen (O) and two atoms of hydrogen (H.) combine to form a molecule of ______.


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 ______.


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