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7 valence electrons
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∙ 12y ago
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How many atoms in a molecule of argon?
There is one atom in argon. Argon is a "noble gas", which means that it occurs independently. This is true for all of the atoms on the final column of the periodic table. http://en.wikipedia.org/wiki/Noble_gas
What are the elements Fluorine Chlorine Bromine and Iodine which all part of the same column of the periodic table called?
They are all in the same column (Group 7) of the periodic table and are also known as the halogens.
What percentage of the atoms are oxygen atoms of Na2SO4?
There are 7 atoms in sodium sulfate altogether: 2 sodium, 1 sulfur and 4 oxygen. Of these 7, 4 of them are oxygen. So 4/7 * 100 = 57.1% of the atoms are oxygen.
What is a Noble gasses?
The 8th column in the periodic table - those atoms with a completed valence orbits.
How many atoms does Fe3O4 have?
3 Fe atoms plus 4 O atoms totals 7 atoms.
What types of electrons gain electrons?
Atoms in column 7 of the Periodic Table have 7 electrons in their outer shell. Atoms are most stable when they have 8 electrons in their outer shell. So atoms of elements in column 7 have a strong attraction for 1 electron. Flourine being the smallest atom in that column has the strongest attraction for 1 electron.
What type of element easily gains electrons?
Atoms in column 7 of the periodic table have 7 electrons in their outer shell. Atoms are most stable when they have 8 electrons in their outer shell. So atoms of elements in column 7 have a strong attraction for 1 electron. Flourine being the smallest atom in that column has the strongest attraction for 1 electron.
All of the atoms of the elements in period 2 have the sme number of?
Atoms of elements in group (column 2 of the periodic table) have 2 electrons in their outer shell. They have a low electronegativity, which means the electrons are not strongly attracted to the protons in the nucleus when compared to the electrons in atoms of column 6 or 7. For this reason, group 2 elements easily form +2 ion when in the presence of group 6 or7 elements.
When atoms from Column I (Group 1) combine with atoms from Column VII (Group 17)?
These obtained compounds are halides, ionic compounds.
Do atoms get larger as they move downward in a column of Periodic Table?
Yes. Atoms get larger as they move downward in a column of periodic table. This is because of increase in number of shells down the group.
What is the place value of the 7 in 700.558?
700.558 '7' is in the HUNDREDS column '0' is in the TENS column '0' is in the UNITS column. '5' is in the TENTHS columns '5' is in the HUNDREDTHS column '8' is in the THOUSANDTHS column . NB For the decimal digits note the use of 'THS'
Atoms of elements in the same group or column have the same number of what?
shells
What is the tenth column of 81.7?
7 is in the tenth column of 81.7.
Is 7 a unit?
Yes, on its own, the 7 has the digital value of the unit column.(The British unit column is called the ones column in America, I believe.)
What are the elements Fluorine Chlorine Bromine and Iodine which all part of the same column of the periodic table called?
They are all in the same column (Group 7) of the periodic table and are also known as the halogens.
How many atoms in a molecule of argon?
There is one atom in argon. Argon is a "noble gas", which means that it occurs independently. This is true for all of the atoms on the final column of the periodic table. http://en.wikipedia.org/wiki/Noble_gas
How may atoms of calcuim are there on the left side of the periodic table?
All of them, on most tables. I've never seen calcium anywhere OTHER than on the left side, at least. (It's actually one column in from the leftmost column).
