Transition elements are:

Which element are present in group-1?

The first ionization energy of sodium atom is ______

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

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

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

Atomic number of lanthanum is:

How many periods are present in the modern periodic table?

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

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

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

Lanthanides series is started from the elements:

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

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

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

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

Along the period, which one of the following decreases:

Mark the incorrect statement about ionization energy:

How many elements block present in modern periodic table?

Group-17 elements are known as:

The horizontal lines present in the periodic table are called ________

How many elements present in 1^st period?

Which element has high value of electro negativity ?

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

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

Normal elements are belonged to:

When we move from top to bottom ionization energy __________ .

Group-1 is also called:

The vertical columns present in the periodic table are called __________

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

Elements with atomic No 90 to 103 are called:

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

All transition elements are _________ .

Atomic size of lithium is ___________

The elements of a group show __________ properties:

Long form of periodic table is constructed on the bases of

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

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

Lanthanide is belonged to period:

Mendeleev’s periodic table was based upon the

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

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

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

Unit of atomic size is _________

How many elements present in 7^th period?

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

The elements or group 3 to 12 are called:

Group number tells about the:

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

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

Actinides are belonged to period:

All transition elements are belonged to:

Who were trying to convert inferior metals to superior metals?

Atomic number of actinium is:

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

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

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

Unit of electron affinity is ___________

Actinide series is started from the elements:

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

Point out the incorrect statement about electron affinity

In which year Mendeleev described his periodic law?

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

Who are arranged the elements in groups of three

Which elements are present in 2^nd period

How many groups are present in the modern periodic table?

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

The unit of ionization energy is:

How many elements present in 6^th period?

Electron affinity of fluorine in kjmil-1 is

Elements of a period show properties?

Element with Atomic no 58 to 71 are called:

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

Atomic size of Neon is ____________

Period number tells about the:

In which year Moseley described his periodic law?

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

Which elements are present in 1st Group

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

The atomic radii of the elements in periodic table