What is the difference between Group 1?

The key difference between group 1 and group 2 elements is that all group 1 elements have unpaired electrons in their outermost orbital, whereas group 2 elements have paired electrons in their outermost orbital. The group 1 and 2 differs from each other depending on the number of electrons in their outermost orbital.

What is special about Group 1 in the periodic table?

Group 1 contains elements placed in a vertical column on the far left of the periodic table . The elements in group 1 are called the alkali metals . are soft (they can be cut with a knife) have relatively low melting points.

What are the 3 elements in Group 1?

Group 1A (or IA) of the periodic table are the alkali metals: hydrogen (H), lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr).

What is Group 1 on the periodic table called?

The alkali metals are six chemical elements in Group 1, the leftmost column in the periodic table. They are lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr).

What is Group 0 called?

the noble gases
The elements in group 0 are called the noble gases . They exist as single atoms .

What is group 0 called?

Why is Group 1 most reactive?

The reactivity of Group 1 elements increases as you go down the group because: the outer electron gets further from the nucleus as you go down the group. the attraction between the nucleus and outer electron gets weaker as you go down the group – so the electron is more easily lost.

What is the largest element in Group 1?

Key Concepts

What is group 0 on the periodic table called?

Group 0 contains non-metal elements placed in the vertical column on the far right of the periodic table . The elements in group 0 are called the noble gases . They exist as single atoms .

Why is it called Group 0?

The noble gases are colorless, odorless, tasteless, and nonflammable under standard conditions. They were once labeled group 0 in the periodic table because it was believed they had a valence of zero, meaning their atoms cannot combine with those of other elements to form compounds.

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