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Chemistry
Periodic Classifications
Periodic Classifications
01 Periodic Classifications
Atomic number and not the atomic weight is the fundamental property of an element was enunciated by?
atomic-number-and-not-the-atomic-weight-is-the-fundamental-property-of-an-element-was-enunciated-by
Elements in a period have same
elements-in-a-period-have-same
The properties of the elements, as well as the formulae and properties of their compounds depend in a periodic manner on the atomic weights of the elements. This periodic law was given by
the-properties-of-the-elements-as-well-as-the-formulae-and-properties-of-their-compounds-depend-in-a-periodic-manner-on-the-atomic-weights-of-the-elements-this-periodic-law-was-given-by
Elements belonging to the same group have similar properties because
elements-belonging-to-the-same-group-have-similar-properties-because
With the increase in size in a group
with-the-increase-in-size-in-a-group
Which of the following is the correct order of relative sizes?
which-of-the-following-is-the-correct-order-of-relative-sizes
The atoms of elements belonging to the same group of periodic table have the same
the-atoms-of-elements-belonging-to-the-same-group-of-periodic-table-have-the-same
Which one of the following has the smallest size?
which-one-of-the-following-has-the-smallest-size
CI, Br, I, if this is a Dobereiner's triad and the atomic masses of CI and I are 35.5 and 127 respectively, then the atomic mass of Br is
ci-br-i-if-this-is-a-dobereiners-triad-and-the-atomic-masses-of-ci-and-i-are-355-and-127-respectively-then-the-atomic-mass-of-br-is
Newlands could classify elements only upto
newlands-could-classify-elements-only-upto
One important merit of modern periodic table is
one-important-merit-of-modern-periodic-table-is
Which of the following properties does not match to the elements of halogen family?
which-of-the-following-properties-does-not-match-to-the-elements-of-halogen-family
Which of the following properties does not match to the elements of halogen family?
which-of-the-following-properties-does-not-match-to-the-elements-of-halogen-family
Which of the following sets does not belong to a group?
which-of-the-following-sets-does-not-belong-to-a-group
In the modern periodic table which one of the following does not have an appropriate position?
in-the-modern-periodic-table-which-one-of-the-following-does-not-have-an-appropriate-position
An element M has an atomic number 9 and atomic mass 19. Its ion will be represented by
an-element-m-has-an-atomic-number-9-and-atomic-mass-19-its-ion-will-be-represented-by
In the third period of the periodic table, the element having smallest size is
in-the-third-period-of-the-periodic-table-the-element-having-smallest-size-is
Which order of relative size amongst the following is incorrect?
which-order-of-relative-size-amongst-the-following-is-incorrect
Which of the following element is most electropositive?
which-of-the-following-element-is-most-electropositive
The general name of the elements of 17th group are
the-general-name-of-the-elements-of-17th-group-are
Which of the following is the lightest metal?
which-of-the-following-is-the-lightest-metal
Elements belonging to the same group have similar chemical properties because
elements-belonging-to-the-same-group-have-similar-chemical-properties-because
Law of Triad was proposed by
law-of-triad-was-proposed-by
Which amongst the following are called magic numbers?
which-amongst-the-following-are-called-magic-numbers
Third period of the periodic table contains the -following number elements.
third-period-of-the-periodic-table-contains-the-following-number-elements
An element has electronic configuration 2, 8, 4. It belong to which group and period of the periodic table
an-element-has-electronic-configuration-2-8-4-it-belong-to-which-group-and-period-of-the-periodic-table
The element with electronic configuration 2, 8, 6 is
the-element-with-electronic-configuration-2-8-6-is
The elements belonging which groups are called representative elements?
the-elements-belonging-which-groups-are-called-representative-elements
Modern periodic table by Mosley states that
modern-periodic-table-by-mosley-states-that
Element 'A' has electronic configuration 2, 7 'B' has configuration 2, 8, 8 while 'D' has 2, 8, 7. Which element will show similar chemical properties?
element-a-has-electronic-configuration-2-7-b-has-configuration-2-8-8-while-d-has-2-8-7-which-element-will-show-similar-chemical-properties
Which amongst the following is highest non-metal?
which-amongst-the-following-is-highest-non-metal
Which amongst the following is not an alkaline earth metal?
which-amongst-the-following-is-not-an-alkaline-earth-metal
On moving horizontally across a period, the number of electrons in the outermost shell increases from.............to.................
on-moving-horizontally-across-a-period-the-number-of-electrons-in-the-outermost-shell-increases-fromto
The element with largest size in the second period is
the-element-with-largest-size-in-the-second-period-is
The element with the smallest size in the group 13 is
the-element-with-the-smallest-size-in-the-group-13-is
Which of the following is not a noble gas?
which-of-the-following-is-not-a-noble-gas
The first scientist who tried to classify elements was
the-first-scientist-who-tried-to-classify-elements-was
The element with highest electron affinity in the periodic table is
the-element-with-highest-electron-affinity-in-the-periodic-table-is
Which one of the following statements is incorrect? Dobereiner's triad had
which-one-of-the-following-statements-is-incorrect-dobereiners-triad-had
The element with atomic number 9 resembles with the element having atomic number
the-element-with-atomic-number-9-resembles-with-the-element-having-atomic-number
The element with smallest size in the 4th period is
the-element-with-smallest-size-in-the-4th-period-is
The elements of group 16 are also called.............
the-elements-of-group-16-are-also-called
According to Newland's law of octaves
according-to-newlands-law-of-octaves
The elements in the middle of the periodic table are called
the-elements-in-the-middle-of-the-periodic-table-are-called
Which amongst the following has smallest size?
which-amongst-the-following-has-smallest-size
Which amongst the following has largest size?
which-amongst-the-following-has-largest-size
The element with atomic number 20 belongs to
the-element-with-atomic-number-20-belongs-to
The element with atomic number 16 is
the-element-with-atomic-number-16-is
Modern periodic table is based on
modern-periodic-table-is-based-on
The element with atomic number 14 is a
the-element-with-atomic-number-14-is-a
Boron show a diagonal relationship with
boron-show-a-diagonal-relationship-with
Halogens are
halogens-are
An element 'X' belong to third period and group IV of the periodic table. Its valency
an-element-x-belong-to-third-period-and-group-iv-of-the-periodic-table-its-valency
The atomic numbers of elements 'X' and 'Y' are 2 and 10 respectively. They are
the-atomic-numbers-of-elements-x-and-y-are-2-and-10-respectively-they-are
How many elements are present in the fourth period of the periodic table?
how-many-elements-are-present-in-the-fourth-period-of-the-periodic-table
The lightest element in the periodic table is
the-lightest-element-in-the-periodic-table-is
Number of elements in the fifth period is
number-of-elements-in-the-fifth-period-is
The longest period in the periodic table is
the-longest-period-in-the-periodic-table-is
An element 'X' have two orbits which are completely filled. Then X is
an-element-x-have-two-orbits-which-are-completely-filled-then-x-is
Which of the following is an element?
which-of-the-following-is-an-element
How many electrons are there in Na+
how-many-electrons-are-there-in-na
How many moles are there in 140 g of Si (atomic mass of silicon is 28)
how-many-moles-are-there-in-140-g-of-si-atomic-mass-of-silicon-is-28
