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anwser keyClick on Alkali Metals (left bar) and answer the following questions. a. What is the group number? _____________. Are these metals reactive? ______________ b. Do these metals occur freely in nature? _____________ c. How many electrons are in their outer shell? _____________ d. What are the three characteristics of ALL metals? _________________________________________ ___________________________________________________________________________________ . e. Are these metals soft or hard? _____________ f. Name the two most reactive elements in this group? ________________ And _________________ g. What happens when they are exposed to water? _________________________________________ . wab quest answer key

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Explanation:

Alkali metals are the metals which belong to group 1 of the periodic table. As these elements have one valence electron so they are highly reactive in nature.

Some characteristics of metals are as follows.

  • Usually metals are hard in nature.
  • They have shiny surface.
  • Metals are malleable and ductile in nature.
  • Metals are good conductors of heat and electricity.

When these metals react with water then it leads to the formation of metal hydrides.

For example, [tex]Li + \frac{3}{2}H_{2}O \rightarrow LiOH + H_{2}[/tex]

Thus, we can conclude the following for alkali metals:

a. What is the group number? - Group 1.

Are these metals reactive? - Yes

b. Do these metals occur freely in nature? - No

c. How many electrons are in their outer shell? - 1 valence electron

d. What are the three characteristics of ALL metals?

  • Usually metals are hard in nature.
  • They have shiny surface.
  • Metals are malleable and ductile in nature.

e. Are these metals soft or hard? - Both

f. Name the two most reactive elements in this group? - Lithium And  Sodium

g. What happens when they are exposed to water? - They form hydrides.

a. Group 1

b. Yes they are reactive

c. One valence electrons

d. Characteristics are given below

e. They are both hard and soft.

Alkali metals:

Alkali metals are the metals which belong to group 1 of the periodic table.As these elements have one valence electron so they are highly reactive in nature.

Some characteristics of metals are as follows.

  1. Usually, metals are hard in nature.
  2. They have shiny surfaces.
  3. Metals are malleable and ductile in nature.
  4. Metals are good conductors of heat and electricity.
  5. When these metals react with water then it leads to the formation of metal hydrides.

Find more information about Alkali metals here:

brainly.com/question/17716597

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