Structure of Atom Quiz 1 – Punjab Meritorious School Preparation Portal

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The ion that is isoelectronic with CO is

The species isoelectronic with C₂H₄ is

The increasing order for the values of e/m (charge/mass) is

e, p, n, α

n, p, e, α

n, p, α, e

n, α, p, e

Which is correct statement about proton ?

Proton is nucleus of deuterium

Proton is a-particle

Proton is ionized hydrogen molecule

Proton is ionized hydrogen atom

Cathode rays are deflected by

an electric field only

magnetic field only

by both

by none

The compound in which cation is isoelectronic with anion is :

One would expect proton to have very large :

ionization potential

radius

charge

hydration energy

What is the ratio of mass of an electron to the mass of a proton?

1 : 2

1 : 1

1 : 1837

1 : 3

The number of neutrons in dipositive zinc ion with mass number 70 is

34

36

38

40

Which has the highest e/m ratio ?

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