Explain how alkali metals are different from noble gases.

The answer to your question is given below

Explanation:

1. Alkali metals are simply metals of the group 1 elements, because they 1 valence electron. Noble gas on the other hand are simply the group zero element, because they have zero valence electron.

2. Alkali metals react with water to form alkalis hence they are called alkali metals. Noble gas does not take part in any reaction hence they are referred to as noble gas.

3. Alkali metals have incomplete octet configuration while noble gas has complete octet configuration.

4. Alkali metals are all solid at room temperature, while noble gas are all gases at room temperature

answer: a chemical reaction

explanation:

im not wrong

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.