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I'm guessing that you're talking about Hydrogen, Oxygen, Bromine, Flourine, Iodine, Nitrogen, and Clorine. They are all diatomic molecules. When found in their pure states, the consist of two atoms bonded together. This is why oxygen is O2, Hydrogen is H2, and so on.
A common mnemonic for remembering them is that you make a "7" on the Periodic Table, starting with the 7th element, nitrogen. Then you just have to remember Hydrogen.
I remember HOBrFINCl, which is pronounced "Hoberfinkle". I think it's easier, and it doesn't require a periodic table.
What else can I help you with?
What is the horizontal column of elements called?
periodsThere are seven periods, or rows, on the periodic table.
What are the seven horizontal rows of the table called how are the elements of row related?
The seven horizontal rows of the table are called periods. Elements in the same row have the same number of electron shells, which determines their chemical properties.
Which of mendeleev table show the elements following a pattern that repeats every seven elements?
It is The Periodic Table of Elements
Most modern periodic tables arrange elements by atomic number into seven horizontal rows called?
The horizontal rows are called periods, there are 7. The vertical rows are groups and there are 18.
What group of elements with seven electrons in the outer level?
halogens (group 17 elements)
What are the 3 elements in group seven on the periodic table called?
There are more than 3 elements in group seven, and they are called halogens.
What is the horizontal column of elements called?
periodsThere are seven periods, or rows, on the periodic table.
What are the seven horizontal rows of the table called how are the elements of row related?
The seven horizontal rows of the table are called periods. Elements in the same row have the same number of electron shells, which determines their chemical properties.
What is the group seven called in the periodic table?
Group 7 elements are examples of transition metals (or d-block elements)
What are horizontal rows of elements are called?
periodsThere are seven periods, or rows, on the Periodic Table.
How do you be a seven super girl?
Strive to uphold
When was Super Seven Calling Cairo created?
Super Seven Calling Cairo was created in 1965.
What is the duration of Super Seven Calling Cairo?
The duration of Super Seven Calling Cairo is 1.58 hours.
What console is Super Mario RPG the seven Sages on?
Not to be confused with Super Mario RPG: Legend of the Seven Stars on the Super Nintendo Entertainment System, also known as Super NES and SNES, Super Mario RPG The Seven Sages is downloadable on the PC for free.
What are super heavy elements?
Super heavy elements are elements with atomic numbers greater than 104. They are synthetic and do not occur naturally on Earth. These elements are typically produced in laboratories through nuclear reactions involving heavy isotopes.
How do you be on seven super girls?
seven super girls number tomorrow night morning
When was Los Super Seven - album - created?
Los Super Seven - album - was created on 1998-09-15.
