The Group number and period number corresponds to the outer most shell and number of electrons present in outer most shell.
For Example:
Oxygen has atomic number 8, and its electronic configurations is,
1s², 2s², 2pₓ², 2py¹, 2pz¹
The outermost shell is 2, means oxygen is present in period 2, and the number of electrons in n = 2 are 6, so the group number is 6 in periodic table.
Lets take another example of Sodium, it has atomic number 11 with electronic configuration;
1s², 2s², 2p⁶, 3s¹
The outermost shell is 3, means sodium is present in period 3, and the number of electrons in n = 3 are 1, so the group number is 1 in periodic table.
You can take two liquids of different densities (how much mass is in a given volume) and pour them into a funnel. An example is oil and water. When the mixture settles, the denser liquid will be at the bottom, and drips through the funnel first. This is a separation that you can just let occur naturally.
Answer:
An earthquake will happen
Explanation:
Give me Brainllest
<h2>Answer:</h2>
<u>Yes the statement is</u><u> True</u>
<h2>Explanation:</h2>
THC is a chemical which stands for delta-9-tetrahydrocannibinol or Δ-9-tetrahydrocannabinol (Δ-9-THC). This chemical is a cannabinoid molecule in marijuana or cannabis that has long been known as the main psychoactive ingredient in marijuana which means that it is the substance that causes users to experience the marijuana high. It can be detected in the blood up to 20 hours after ingestion, and it's stored in the body fat and organs for three to four weeks after ingestion.
Answer:
GRAPHENE is a single layer of graphite
Explanation:
each carbon atom bonded to 3 other carbon atoms forming a hexagonal lattice
