Login

What are the ​features of modern periodic table. Please quikly as possible.

  • The elements that have like physical and chemical properties are found in vertical columns;
  • The vertical columns are called groups;
  • The vertical columns are numbered from 1 to 8;
  • Each number is followed by a letter: A or B
  • A groups contain main elements and B groups contain transition elements
  • The name of the horizontal row is period;
  • The period that contains only H and He has the number 1.
  • The properties of the elements divide the the periodic table in areas that are marked with different colors;
  • The elements of the periodic table belong to 3 groups: metals, nonmetals, metalloids;
  • Metalloids are located to the boundary between metals and nonmetals;
  • The elements located to the left end of the period, have a metallic character;
  • The properties of the elements from B (boron) to Te (tellurium) make difficult their classification (metals or nonmetals). 
  • 0
View Full Answer
 
  • The elements that have like physical and chemical properties are found in vertical columns;
  • The vertical columns are called groups;
  • The vertical columns are numbered from 1 to 8;
  • Each number is followed by a letter: A or B
  • A groups contain main elements and B groups contain transition elements
  • The name of the horizontal row is period;
  • The period that contains only H and He has the number 1.
  • The properties of the elements divide the the periodic table in areas that are marked with different colors;
  • The elements of the periodic table belong to 3 groups: metals, nonmetals, metalloids;
  • Metalloids are located to the boundary between metals and nonmetals;
  • The elements located to the left end of the period, have a metallic character;
  • The properties of the elements from B (boron) to Te (tellurium) make difficult their classification (metals or nonmetals).
  • 1
Features of the Modern Periodic Table :-

  1)The elements in the periodic table are arranged in the increasing order of their atomic number or electronic configurations .

2) The horizontal rows are called as "periods".

3) The vertical columns are called as " groups" .

4)The Modern periodic table consists of 7 periods and 18 groups.
  • 0
What are you looking for?