Answer:
The element is Magnesium.
Explanation:
On the periodic table, elements are arranged based on atomic number and chemical similarity.
- A group on the periodic table is a vertical column that places elements with very similar chemical characteristics together. For instance, the elements in group 18 are all gases (this group is named the Noble Gases group).
- A period on the periodic table is a horizontal row that places elements that show periodic trends together. They also have very similar characteristics (same amount of subshells that house electrons).
If we look at the periodic table, we will notice that there are eighteen groups and seven periods. And, we can also see that the groups are vertical while the periods are horizontal.
Therefore, if we count two across and three down, we will see the element Mg - atomic number 12. Mg is the element <em>symbol</em>, not the name, so we can look and see that the name of the element is Magnesium.
Answer:
An electron has more mass than a proton or a neutron.
Explanation:
Mass of electron - 9.109 e-31 kg
hope it helps!!
Answer:
a lot more than you can eat your green beans
Answer:
a) Increasing the toll for non carpoolers will motivate people to carpool and therefore will decrease the number of cars in the road burning fossil fuels.
b) Tax breaks for buildings that use solar panels for energy. This reduces fossil fuels burned for electricity.
c) The city can increase the amount of city transportation available. While this may seem counterproductive because the amount of buses or trains or boats burning fossil fuels increases, by doing this more people will have easy access to public transportation and it has been shown that public transportation is more effective in reducing fossil fuel usage per head. Providing more options of public transportation will increase their usage and therefore will over decrease the amount of fossil fuel burned by individiuals which will overall decrease fossil fuels burning.
Answer:
The molecular structure will remain the same.
Explanation:
When water is heated, the heat supplied breaks down the intermolecular interactions (Hydrogen bondings) between the water molecules. This results in conversion of liquid state to gas state and water vapors evaporate.
While the molecular structure keeps intact. It is not changed. Hence, when the heat is removed the vapors of water condense back to liquid state and releases the heat which was absorbed during vaporization.