Moseley arranged the elements in his periodic table on the basis of:

In which year Mendeleev described his periodic law?

Which period of the modern periodic table is considered as incomplete period

The minimum amount o energy which is required to remove an electron from the gaseous state of an atom is called

The unit of ionization energy is:

When we move from top to bottom ionization energy __________ .

All transition elements are belonged to:

With increase atomic number, the number of electrons in an atom also ______

Group-1 is also called:

Mendeleev’s periodic table was based upon the

Elements with atomic No 90 to 103 are called:

How many electrons present in the valence shell of group-1 elements?

Actinide series is started from the elements:

The amount of energy released when an electron is added in the outermost shell of an isolated gaseous atom is called

All transition elements are _________ .

Actinides are belonged to period:

The distance between the Nuclei of two carbon atoms in its elements form is ___________

How many elements present in 4^th & 5^th Period?

Which one of the following halogens has lowest electron-egativity?

Element with Atomic no 58 to 71 are called:

Lanthanide is belonged to period:

Electron affinity of fluorine in kjmil-1 is

How many periods are present in the modern periodic table?

1. Who determined the correct atomic masses of elements in 1860?

In Periodic Table, 2^nd & 3^rd period are called _______

When we move from left to right in a period ionization energy is ___________.

Unit of atomic size is _________

Atomic number of lanthanum is:

Point out the incorrect statement about electron affinity

The first ionization energy of sodium atom is ______

When we move from left to right in a period atomic size is _____________

Groups-17 elements contains electrons in their outer most shell:

Atomic size of Neon is ____________

The vertical columns present in the periodic table are called __________

The group-1 and group-2 and group-13 to group-17 contain the elements:

Who were trying to convert inferior metals to superior metals?

Who are arranged the elements in groups of three

Transition elements are:

Atomic size of lithium is ___________

Lanthanides series is started from the elements:

In which year Moseley described his periodic law?

The horizontal lines present in the periodic table are called ________

When we move left to right in a period atomic number _________

The ability of an atom to attract the shared pair of electrons toward, itself in a molecule is called:

How many elements present in 7^th period?

Which element has high value of electro negativity ?

When we move from top to bottom in a group shielding effect is ____________.

Long form of periodic table is constructed on the bases of

When we move from left to right in a period shielding effect is ___________

In modern periodic table the elements in a group do not have continuously increasing

Along the period, which one of the following decreases:

Normal elements are belonged to:

How many elements present in 6^th period?

The atomic radii of the elements in periodic table

How many elements present in 1^st period?

Atomic number of actinium is:

Elements of a period show properties?

Mark the incorrect statement about ionization energy:

Period number tells about the:

How many groups are present in the modern periodic table?

The elements or group 3 to 12 are called:

Elements of group 1 & 2 have their valence electrons in sub shell.

How many elements were present in Mendeleev’s periodic table?

The amount of energy given out when an electron is added to an atom is called ____________

The elements of a group show __________ properties:

How many elements block present in modern periodic table?

In which year Newland put forward his observation I the form of law of octaves?

Elements are classified into four blocks depending upon the type of the

Which elements are present in 2^nd period

Which element are present in group-1?

4^th and 5^th period of the long form of periodic table are called

How many elements present in 2^nd & 3^rd Period?

When we move from top to bottom in a group atomic size is __________.

In which century chemists devoted to arrange the elements in a systematic manner:

Elements of group 13 to 18 have their valence electrons in sub shell.

Group number tells about the:

Unit of electron affinity is ___________

Group-17 elements are known as:

Mendeleev arranged elements in his periodic table on the basis of:

Which elements are present in 1st Group