Question

What are groups 1,2 and 3 examples of on the periodic table

Answer 1

Groups 1, 2 and 3 in the Periodic table are examples of metals.

Further Explanation

• Periodic tables is a table that arranges elements in rows known as periods and columns known as groups in order of chemical and physical properties.  
• Elements in a similar group have similar chemical properties. For example elements in group 7 are known as halogens, they have a valence of 1 and share chemical properties.
• The most common classification of elements in the periodic table are metals, metalloids and non-metals.  

Metals

• Metals are those element in the periodic table that require to gain electrons to attain a stable configuration. These includes:

1. Group 1: Elements in group 1 are known as alkali metals. These elements are metals are require to lose one electron to attain a stable configuration and therefore have a valence of 1. They include, Lithium, Sodium and Potassium among others.
2. Group 2: Elements in group 2 are known as alkaline earth metals. These elements have a valence of two as they require to lose two electrons to attain a stable configuration. Examples of group 2 element include; Calcium, magnesium, etc.
3. Group 3: Elements in group three have a valence of three and require to lose three electrons to attain a stable configuration. Examples, Boron, Aluminum, etc.

Metalloids

• These are elements that have both metallic and non-metallic properties. They include silicon, arsenic, germanium, etc.

Non-metals  

• No-metals are elements that form stable ions by gaining electrons forming negatively charged ions. They include elements in group 5, 6, 7 and 8.

Keywords: Metals, periodic table, elements

Learn more about:  

1. Properties of metallic elements: brainly.com/question/1560669
2. Properties of non-metals: brainly.com/question/6947207
3. Properties of metalloids: brainly.com/question/6499600

Level: High school  

Subject: Chemistry  

Topic: Chemical families and periodic table  

Answer 2

The correct answer is:

Metals

They are all alkali and transition metals

Explanation:

The periodic table includes elements clustered into groups with comparable properties. Alkali metals are reactive, soft metals with low densities. Transition metals are unreactive metals that have many have common uses. Halogens are reactive non-metals that form glowing vapors.