The elements or group 3 to 12 are called:

Actinide series is started from the elements:

Atomic size of lithium is ___________

Transition elements are:

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

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

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

Period number tells about the:

Point out the incorrect statement about electron affinity

Normal elements are belonged to:

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

Who are arranged the elements in groups of three

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

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

Mark the incorrect statement about ionization energy:

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

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

Which element has high value of electro negativity ?

When we move from top to bottom ionization energy __________ .

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

The first ionization energy of sodium atom is ______

Along the period, which one of the following decreases:

Electron affinity of fluorine in kjmil-1 is

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

How many periods are present in the modern periodic table?

Who were trying to convert inferior metals to superior metals?

Atomic number of lanthanum is:

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

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

Lanthanides series is started from the elements:

Unit of electron affinity is ___________

Lanthanide is belonged to period:

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

The atomic radii of the elements in periodic table

How many groups are present in the modern periodic table?

How many elements present in 6^th period?

Element with Atomic no 58 to 71 are called:

Mendeleev’s periodic table was based upon the

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

Unit of atomic size is _________

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

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

Long form of periodic table is constructed on the bases of

Group number tells about the:

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

The unit of ionization energy is:

All transition elements are _________ .

How many elements present in 7^th period?

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

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

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

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

The horizontal lines present in the periodic table are called ________

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

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

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

Atomic size of Neon is ____________

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

Elements with atomic No 90 to 103 are called:

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

In which year Moseley described his periodic law?

Which element are present in group-1?

Elements of a period show properties?

The vertical columns present in the periodic table are called __________

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

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

How many elements present in 1^st period?

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

Which elements are present in 2^nd period

Atomic number of actinium is:

In which year Mendeleev described his periodic law?

Actinides are belonged to period:

Group-1 is also called:

The elements of a group show __________ properties:

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

How many elements block present in modern periodic table?

Which elements are present in 1st Group

All transition elements are belonged to:

Group-17 elements are known as:

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