English

One Nm is Equal to :

Advertisements
Advertisements

Question

One nm is equal to :

Options

  • 10–9 mm

  • 10–7 cm

  • 10–9 cm

  • 10–6 m

MCQ
Advertisements

Solution

10−7 cm

One nanometre is equal to 10−7 centimetre.

shaalaa.com
  Is there an error in this question or solution?
Chapter 3: Atoms and Molecules - Very Short Answers [Page 131]

APPEARS IN

Lakhmir Singh Chemistry [English] Class 9
Chapter 3 Atoms and Molecules
Very Short Answers | Q 68 | Page 131

RELATED QUESTIONS

If bromine atom is available in the form of, say, two isotopes `""_35^79Br (49.7%)" and """_35^81Br (50.3%)`, calculate the average atomic mass of bromine atom.


TRUE \ FALSE

Elements having a tendency to accept electrons are called metals

 


ANSWER IN DETAIL

How are isobars different from isotopes ?


Define:- Radicals


Write the names of the elements present in the:- 

Glucose


Name two particles found inside the nucleus. What are they collectively called ?


A certain particle ‘X’ has 17 protons, 18 electrons and 20 neutrons.

What is the mass number of X?


Fill in the following blanks with suitable words :

In water, the proportion of oxygen and hydrogen is .............. by mass.


What is an atom ? How do atoms usually exist ?


Which of the following statement is correct about the atom of an element ?


Draw the diagrams representing the atomic structures of the following: Neon


Elements X and Y have 1 and 7 electrons in their outermost shell respectively.

Which will form positive ion?


Define – Atom.


Draw the structure of an atom and explain the position of the sub-atomic particles.


Project.

To have an idea of what atoms are, students can be asked to construct atoms using pipe cleaners (thin metal wires-electron shells), pompoms (balls-different colours for protons and neutrons) and beads (electrons). Students will love and enjoy putting them together and they look great hanging from the ceiling in the classroom.


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


The volume occupied by 4.4 g of CO2 at S.T.P ______


A change in the physical state can be brought about


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


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 ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×