An atom has atomic mass number 23 and atomic number 11 The atom has electrons

MEDIUM

Physical Sciences>Matter and Its Interactions>Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.>Structure and Properties of Matter - Each atom has a charged substructure consisting of a nucleus, which is made of protons and neutrons,surrounded by electrons.

Two atoms are said to be isobars if

MEDIUM

Physical Sciences>Matter and Its Interactions>Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.>Structure and Properties of Matter - Each atom has a charged substructure consisting of a nucleus, which is made of protons and neutrons,surrounded by electrons.

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

MEDIUM

Physical Sciences>Matter and Its Interactions>Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.>Structure and Properties of Matter - Each atom has a charged substructure consisting of a nucleus, which is made of protons and neutrons,surrounded by electrons.

If electronic configuration of an atom is

2, 8, 7

, then atomic number of the atom will be

MEDIUM

Physical Sciences>Matter and Its Interactions>Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.>Structure and Properties of Matter - Each atom has a charged substructure consisting of a nucleus, which is made of protons and neutrons,surrounded by electrons.

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

EASY

Physical Sciences>Matter and Its Interactions>Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.>Structure and Properties of Matter - Each atom has a charged substructure consisting of a nucleus, which is made of protons and neutrons,surrounded by electrons.

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

MEDIUM

Physical Sciences>Matter and Its Interactions>Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.>Structure and Properties of Matter - Each atom has a charged substructure consisting of a nucleus, which is made of protons and neutrons,surrounded by electrons.

The distribution of electrons in carbon is as follows:

MEDIUM

Physical Sciences>Matter and Its Interactions>Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.>Structure and Properties of Matter - Each atom has a charged substructure consisting of a nucleus, which is made of protons and neutrons,surrounded by electrons.

Which will have electronic configuration

2, 8, 2

?

MEDIUM

Physical Sciences>Matter and Its Interactions>Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.>Structure and Properties of Matter - Each atom has a charged substructure consisting of a nucleus, which is made of protons and neutrons,surrounded by electrons.

The number of neutrons in

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

is

EASY

Physical Sciences>Matter and Its Interactions>Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.>Structure and Properties of Matter - Each atom has a charged substructure consisting of a nucleus, which is made of protons and neutrons,surrounded by electrons.

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

EASY

Physical Sciences>Matter and Its Interactions>Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.>Structure and Properties of Matter - Each atom has a charged substructure consisting of a nucleus, which is made of protons and neutrons,surrounded by electrons.

Hydrogen contains three types of atoms (

{}_{1}^{1}H

protium,

{}_{1}^{2}H

deuterium,

{}_{1}^{3}H

tritium). These atoms are

MEDIUM

Physical Sciences>Matter and Its Interactions>Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.>Structure and Properties of Matter - Each atom has a charged substructure consisting of a nucleus, which is made of protons and neutrons,surrounded by electrons.

Isotopes of an element contains

HARD

Physical Sciences>Matter and Its Interactions>Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.>Structure and Properties of Matter - Each atom has a charged substructure consisting of a nucleus, which is made of protons and neutrons,surrounded by electrons.

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?

MEDIUM

Physical Sciences>Matter and Its Interactions>Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.>Structure and Properties of Matter - Each atom has a charged substructure consisting of a nucleus, which is made of protons and neutrons,surrounded by electrons.

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

MEDIUM

Physical Sciences>Matter and Its Interactions>Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.>Structure and Properties of Matter - Each atom has a charged substructure consisting of a nucleus, which is made of protons and neutrons,surrounded by electrons.

Two elements P and Q have

5

and

7

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

EASY

Physical Sciences>Matter and Its Interactions>Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.>Structure and Properties of Matter - Each atom has a charged substructure consisting of a nucleus, which is made of protons and neutrons,surrounded by electrons.

Radioactive isotope used in the treatment of cancer disease is

EASY

Physical Sciences>Matter and Its Interactions>Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.>Structure and Properties of Matter - Each atom has a charged substructure consisting of a nucleus, which is made of protons and neutrons,surrounded by electrons.

Which statement out of the following is true? Isobars have

EASY

Physical Sciences>Matter and Its Interactions>Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.>Structure and Properties of Matter - Each atom has a charged substructure consisting of a nucleus, which is made of protons and neutrons,surrounded by electrons.

How many valence electrons present in

{Cl}^{-}

ion?

MEDIUM

Physical Sciences>Matter and Its Interactions>Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.>Structure and Properties of Matter - Each atom has a charged substructure consisting of a nucleus, which is made of protons and neutrons,surrounded by electrons.

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:

EASY

Physical Sciences>Matter and Its Interactions>Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.>Structure and Properties of Matter - Each atom has a charged substructure consisting of a nucleus, which is made of protons and neutrons,surrounded by electrons.

In

{}_{88}R^{226}

nucleus, there are

MEDIUM

Physical Sciences>Matter and Its Interactions>Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.>Structure and Properties of Matter - Each atom has a charged substructure consisting of a nucleus, which is made of protons and neutrons,surrounded by electrons.

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

An atom has atomic mass number $23$ and atomic number $11$ . The atom has electrons.

Important Questions on Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.

Learn and Prepare for any exam you want !

An atom has atomic mass number 23 and atomic number 11. The atom has electrons.

Important Questions on Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.

Learn and Prepare for any exam you want !

An atom has atomic mass number $23$ and atomic number $11$ . The atom has electrons.