What is the difference between a group and a period?

What is the difference between a group and a period?

The columns of the periodic table are called groups. Members of the same group in the table have the same number of electrons in the outermost shells of their atoms and form bonds of the same type. The horizontal rows are called periods.

What is the difference between group number and period number?

Periods are horizontal rows (across) the periodic table, while groups are vertical columns (down) the table. Atomic number increases as you move down a group or across a period.

What are the characteristics of groups and periods?

Characteristics of groups and periods in a periodic table

• Atomic Size: From top to bottom in a group, the size of atom increases as a new shell to the atom.
• Valence Electrons(V.E) : Number of valence electrons in a group are same.
• Valency: All elements in a group generally have the same valency.

What are the characteristics of group 1 on the periodic table?

Group one elements share common characteristics. They are all soft, silver metals. Due to their low ionization energy, these metals have low melting points and are highly reactive. The reactivity of this family increases as you move down the table.

What do you understand by group and period write two main characteristics of each?

The horizontal rows on the periodic table are called periods. So, in these groups, the reactivity decreases as we go from top to bottom. Valence electrons, valency, atomic size, ionization energy, metallic character, electron-positivity, electron-negativity and reactivity are the characteristics of groups.

How do you find the period block and group?

a)For s block elements ,group number is equal to the number of valence electrons. b) For p block elements ,group number is equal to 10+number of electrons in the valence shell. c)For d block elements ,group number is equal to the number of electrons in a (n-1) sub shell + the number of electrons in valence shell.

What’s the difference between a period and a group?

Periods are horizontal rows (across) the periodic table, while groups are vertical columns (down) the table.

How are periods and groups arranged on the periodic table?

Groups Periodic table is arranged into periods and groups Groups are vertical columns while periods are the horizontal rows Elements in a group share chemical or physical properties whereas elements in a period have the same electron configurations There are 7 periods and 18 groups on the periodic table

Are there only two elements in period 1?

there are only two elements in Period 1 (hydrogen and helium) The zig-zag line in this diagram separates the metals, on the left, from the non-metals, on the right. Hydrogen is a non-metal but it is often put in the middle. Most elements are metals, rather than non-metals.

How are Group 1 metals different from transition metals?

Group 1 metals are also known as alkali metals because these elements can form alkaline compounds. However, group 1 of the periodic table contains hydrogen, which is a nonmetal. Transition metals, on the other hand, are d block elements, but not all d block elements are transition metals.