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प्रश्न
The similarities in the properties of a group of elements are because they have the same ______.
विकल्प
electronic configuration
number of outer electrons
atomic numbers
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उत्तर
The similarities in the properties of a group of elements are because they have the same number of outer electrons.
संबंधित प्रश्न
How does the electropositive character of elements change on going down in a group of the periodic table?
Correct the statements.
Elements in the same periods have equal valency.
An element has 2 electrons in its N shell.
State the name assigned to this group.
An element barium has atomic number 56. Look up its position in the periodic table and answer the following question.
Is it more or less reactive than calcium?
An element X belong to 3rd periods and group II of the periodic table state:
the number of valence electrons,
name the elements in period 1.
Use the letters only written in the Periodic Table given below to answer the questions that follow:
(a) State the number of valence electrons in the atom J.(b) Which element shown forms ions with a single negative charge?
(c) Which Metallic element is more reactive than R?
(d) Which element has its electrons arranged in four shells?
An element A has 2 electrons in its fourth shell. State:
is it a metal or non-metal
Fill in the blank and rewrite the completed statement:
________ group in the periodic table contains elements that are all gases at room temperature.
Which of the following would weigh the least?
(Atomic masses C = 12, 0 = 16, Na = 23)
