Answer:
In chemistry, a group is a vertical column in the periodic table of the chemical elements. ... Each element within a group has similar physical or chemical properties because of its atom's outermost electron shell (most chemical properties are dominated by the orbital location of the outermost electron).
The Alkali metals are Lithium, Sodium, Potassium, Rubidium, Caesium, and Francium. There may be Hydrogen as well, it really depends if the teacher considers it a metal. The Alkalis are the far left column on the periodic table. If you don't have a paper copy, www.ptable.com is a good resource.
Answer:
carbon dioxide
Explanation:
carbon dioxide is a compound
Answer: they are called electrical conductors.
Explanation:
Some materials let electricity pass through them easily. These materials are known as electrical conductors. Many metals, such as copper, iron and steel, are good electrical conductors. That is why the parts of electrical objects that need to let electricity pass through are always made of metal.
Answer:
In a chemical reaction the total mass of all the substances taking part in the reaction remains the same. Also, the number of atoms in a reaction remains the same. Mass cannot be created or destroyed in a chemical reaction.
Explanation: