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Oxygen is although a gas, but it can also be found in a liquid state. Are the atoms present in liquid oxygen different from the atoms in gaseous oxygen?

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Important Questions on Matter in our Surroundings

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Science>Chemistry>Matter in our Surroundings>Physical Nature of Matter

Two atoms are said to be isobars if

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Science>Chemistry>Matter in our Surroundings>Physical Nature of Matter

Which element have two shells and both these shells are fulfilled with electrons?

MEDIUM

Science>Chemistry>Matter in our Surroundings>Physical Nature of Matter

If electronic configuration of an atom is

2, 8, 7

, then atomic number of the atom will be

MEDIUM

Science>Chemistry>Matter in our Surroundings>Physical Nature of Matter

The maximum number of electrons in a shell can be show by

EASY

Science>Chemistry>Matter in our Surroundings>Physical Nature of Matter

Which of the following elements has two shells, both of which are completely filled with electrons?

MEDIUM

Science>Chemistry>Matter in our Surroundings>Physical Nature of Matter

The distribution of electrons in carbon is as follows:

MEDIUM

Science>Chemistry>Matter in our Surroundings>Physical Nature of Matter

Which will have electronic configuration

2, 8, 2

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Science>Chemistry>Matter in our Surroundings>Physical Nature of Matter

The number of neutrons in

{}_{13}^{27}{Al}

EASY

Science>Chemistry>Matter in our Surroundings>Physical Nature of Matter

In the formation of which of the following compounds, the octet rule is not obeyed?

EASY

Science>Chemistry>Matter in our Surroundings>Physical Nature of Matter

Hydrogen contains three types of atoms (

{}_{1}^{1}H

protium,

{}_{1}^{2}H

deuterium,

{}_{1}^{3}H

tritium). These atoms are

MEDIUM

Science>Chemistry>Matter in our Surroundings>Physical Nature of Matter

Isotopes of an element contains

HARD

Science>Chemistry>Matter in our Surroundings>Physical Nature of Matter

Nitrogen (atomic number $7$ ) and phosphorus (atomic number $15$ ) belong to group $15$ of the Periodic Table. Write the electronic configuration of these two elements. Which one of these will be more electronegative? Why?

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Science>Chemistry>Matter in our Surroundings>Physical Nature of Matter

Which one of the followings is correct electronic configuration of sodium?

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Science>Chemistry>Matter in our Surroundings>Physical Nature of Matter

Two elements P and Q have

5

and

7

electrons in their outermost shell respectively. The atomic number of P and Q will be

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Science>Chemistry>Matter in our Surroundings>Physical Nature of Matter

Radioactive isotope used in the treatment of cancer disease is

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Science>Chemistry>Matter in our Surroundings>Physical Nature of Matter

Which statement out of the following is true? Isobars have

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Science>Chemistry>Matter in our Surroundings>Physical Nature of Matter

How many valence electrons present in

{Cl}^{-}

ion?

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Science>Chemistry>Matter in our Surroundings>Physical Nature of Matter

Match the following :
List -I :
(a) Frequency of distribution of the emitted radiation from a black body
(b) Spin quantum numbers(m_s)
(c) Angular Momentum
(d) All orbital have equal energy

List - II :
(i) degeneracy
(ii) temperature dependent
(iii) vector quantity
(iv) mass times velocity times radius

Codes:

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Science>Chemistry>Matter in our Surroundings>Physical Nature of Matter

{}_{88}R^{226}

nucleus, there are

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Science>Chemistry>Matter in our Surroundings>Physical Nature of Matter

An atom has electronic configuration 2, 8. 7. What is the atomic number of this element.

Oxygen is although a gas, but it can also be found in a liquid state. Are the atoms present in liquid oxygen different from the atoms in gaseous oxygen?

Important Questions on Matter in our Surroundings

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