मराठी
सी.आई.एस.सी.ई.आयसीएसई ICSE Class 8

State the mass number, the atomic number, number of neutrons and electronic configuration of the following atoms. 126C,168O,199F,2010Ne,13Al27,17Cl35 Also, draw atomic diagrams for them.

Advertisements
Advertisements

प्रश्न

State the mass number, the atomic number, number of neutrons and electronic configuration of the following atoms.

`""^12""_6C, ""^16""_8O, ""^19""_9F, ""^20""_10Ne, ""_13""Al""^27, ""_17""Cl""^35` 

Also, draw atomic diagrams for them.

टीपा लिहा
Advertisements

उत्तर

Name of elements Atomic   number Atomic    mass

No of 

proton 

No of 

electrons 

no.of 

neutrons 

Electronic 

configuration 

`""^12""_6C` 6 12 6 6 6 2, 4
`""^16""_8O` 8 16 8 8 8 2, 6
`""^19""_9F` 9 19 9 9 10 2, 7
`""^20""_10Ne` 10 20 10 10 10 2, 8
`""_13""Al""^27` 13 27 13 13 14 2, 8, 3
`""_17""Cl""^35` 17 35 17 17 18 2, 8, 7

 

Carbon `""^12""_6C`
Oxygen `""^16""_8O`
Fluorine `""^19""_9F`
Neon `""^20""_10Ne`
Aluminium `""_13""Al""^27`
Chlorine `""_17""Cl""^35`
shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 4: Atomic Structure - Exercise [पृष्ठ ५२]

APPEARS IN

सेलिना Concise Chemistry [English] Class 8 ICSE
पाठ 4 Atomic Structure
Exercise | Q 10 | पृष्ठ ५२

संबंधित प्रश्‍न

Multiple Choice Questions

If the atomic number of an atom is 17 and mass number is 35 then number of neutron will be


What are the two main features of Rutherford’s atomic model?


The atom of an element is made up of 4 protons, 5 neutrons and 4 electrons. What is its atomic number and mass number?


Fill in the blank of the following statement : 

The total number of protons and neutrons in the nucleus of an atom is called its _________.


The number of electrons in the atom of an element X is 15 and the number of neutrons is 16. Which of the following is the correct representation of an atom of this element ?


An atom of an element has two electrons in the M shell.

What is the (a) atomic number (b) number of protons in this element?


Draw the atomic diagram of the following element showing the distribution of – protons, neutrons and the electrons in the various shell of the atom.

Carbon – \[\ce{^12_6C}\]

[The upper number represent the – mass number and the lower number represent the – atomic number e.g. calcium – mass number = 40, atomic number = 20]


Atomic number : ______ :: Mass number : Number of protons and neutrons.


Compare the charge and mass of protons and electrons.


A group of elements in the periodic table is given below (Boron is the first member of the group and Thallium is the last).

Boron, Aluminium, Gallium, Indium, Thallium

Answer the following question in relation to the above group of elements:

The atomic number of boron is 5. Write the chemical formula of the compound formed when boron reacts with chlorine.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×