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सी.आई.एस.सी.ई.आईसीएसई ICSE Class 7

Fill in the Blank an Ion with Negative Charge is Called _______

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प्रश्न

Fill in the blank

An ion with negative charge is called _______

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उत्तर

An ion with negative charge is called anion.

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अध्याय 4: Atomic Structure - Objective type questions

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एस पी सिंग Concise Chemistry [English] Class 7 ICSE
अध्याय 4 Atomic Structure
Objective type questions | Q 1.3

संबंधित प्रश्न

ANSWER IN DETAIL

How are isobars different from isotopes ?


Write the names of the elements present in the:-

Acetic acid


Fill in the blank

An ion with positive charge is called ______


Define: Mass number


What does an atom consist of ? Explain.


 Give the charge and the mass of an electron, proton and neutron present in an atom ?


Name three non-metals/radicals which have valency -1, -2, and -3.


Write electronic configuration of oxygen, fluorine, sodium, silicon, argon.


How did Neils Bohr visualise the atom ?


Fill in the blank

If an atom gains an electron, it is called an _______


Deduce from the datum provided.

Datum To deduce
\[\ce{_11^23Na}\] Neutron number
\[\ce{_6^14C}\] Mass number
\[\ce{_17^37 Cl}\]  Proton number

Draw diagrams representing the atomic structures of the following:

  1. Sodium atom
  2. Chlorine ion
  3. Carbon atom
  4. Oxygen ion

Name the gas that.

Turns moist starch iodide paper blue black.


Draw the basic structure of an atom representing its –

  1. Subatomic particles
  2. Nucleus
  3. Orbits or shells.

The electronic structure [configuration] of fluorine can be written as 2, 7. In a similar way give the electronic configuration of aluminium


Define – Atom.


Which of the following statements made by Dalton has not undergone any change?


Atoms of different elements having ______ mass numbers, but ______ atomic numbers are called isobars. 


A sample of vitamic C is known to contain 2.58 ×1024 oxygen atoms. How many moles of oxygen atoms are present in the sample?


The ______ are combination of atoms of various elements or the same element.


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