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Electronic configuration..



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Q1. Metals consist of ______% of the elements known.

(a) 78
(b) 32
(c) 22
(d) 68

Q2. Which of the following is not a Metalloid?

(a) Germanium
(b) Silicon
(c) Aluminum
(d) Tellurium

Q3. Chalcogens are the elements of Group ___________

(a) 18
(b) 16
(c) 12
(d) 2

Q4. Which of the following is not true about transuranium elements?

(a) Atomic number > 92
(b) Elements after Uranium
(c) Decay radioactively as they are unstable
(d) Example is Thorium

Q5. The outer shell electronic configuration of transition block elements is given by ________

(a) (n-1)d1-10ns2
(b) (n-1)d1-10(n-1)s0-2
(c) (n-1)d1-10ns0-2
(d) nd1-10ns0-2

Q6. What happens to the non-metallic nature as we move from left to right in groups?

(a) Increases
(b) Decreases
(c) Remains constant
(d) Irregular

Q7. The p-block elements along with s-block elements are called as ________ elements.

(a) Inner transition
(b) Representative
(c) Radioactive
(d) Transition

Q8. ns1 and ns2 are the outer shell configurations of elements in s-block.

(a) True
(b) False
(c) Both acidolysis and aldehyde
(d) None of the mentioned

Q9. __________ has both the characteristics of Alkali metals and halogens.

(a) Helium
(b) Chlorine
(c) Sodium
(d) Hydrogen

Q10. Name the element that belongs to s-block but is placed in the p-block.

(a) Hydrogen
(b) Helium
(c) Argon
(d) Aluminum


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Assertion : Cathode Rays Do Not Travel In Straight Lines. Reason : Cathode Rays Penetrate Through Thick Sheets.

Modified 248 Year Ago

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248 Year Ago

Assertion : Cathode Rays Do Not Travel In Straight Lines. Reason : Cathode Rays Penetrate Through Thick Sheets.

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418 views

E/m Ratio Was Determined By

Modified 248 Year Ago

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248 Year Ago

E/m Ratio Was Determined By

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402 views

Magnitude Of K.E. In An Orbit Is Caused By

Modified 248 Year Ago

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248 Year Ago

Magnitude Of K.E. In An Orbit Is Caused By

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344 views

The Minimum Real Charge On Any Particle Which Can Exist Is

Modified 248 Year Ago

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248 Year Ago

The Minimum Real Charge On Any Particle Which Can Exist Is

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342 views

Assertion : Cathode Rays Are A Stream Of α -particles. Reason : They Are Generated Under High Pressure And High Voltage.

Modified 248 Year Ago

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248 Year Ago

Assertion : Cathode Rays Are A Stream Of α -particles. Reason : They Are Generated Under High Pressure And High Voltage.

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0 Answer
324 views

The Average Distance Of An Electron In An Atom From Its Nucleus Is Of The Order Of

Modified 248 Year Ago

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248 Year Ago

The Average Distance Of An Electron In An Atom From Its Nucleus Is Of The Order Of

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