For each element, a square on the standard periodic table will contain:
The Atomic Number (the integer at the top, which represents the number of protons in the atoms of that element)
The Chemical Symbol of the element (the one or two letter symbol, such as C for Carbon, Mg for magnesium)
The Atomic Mass of the element (the average mass of all naturally occurring isotopes of that element. It's often a decimal number because it's an average, even though it represents the number of protons and neutrons in the atom)Usually, the element's common name is listed, but not all charts do this.
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Answer:
the state or quality of a material or membrane that causes it to allow liquids or gases to pass through it.
Given :
The atomic weight of copper is 63.5 gm.
To Find :
The total number of gram atoms and number of atoms present in 100 gram of copper.
Solution :
We know, 1 gram atom is equal to mass of one mole of copper i.e. 63.5 gm.
So, number of gram atom in 100 gram of copper is :
n = 100/63.5
n = 1.57 gram atom
Now, number of atoms on gram atom is :
Therefore, total number of gram atoms and number of atoms present in 100 gram of copper is 1.57 gram atom and .
Hence, this is the required solution.
Answer:
Decomposition or cracking
Explanation:
Decomposition reaction is a chemical change in which a single compound is broken down into two or more simpler products.
For example;
A → B + C
The driving force of such reaction is the high positive heat of formation of the compound which indicates that they are highly unstable.
Some stable compounds also decompose when subjected to high temperature and pressure.