Six.
Calcium iodide has a total of 3 atoms: 1 calcium atom and 2 iodine atoms.
Iodine nuclei have one more Proton than Tellurium, but in general the Tellurium atoms have more neutrons, giving a higher average atomic mass. Elements often have isotopes, and their stated atomic masses are averages which look at the abundance of these isotopes. In a given sample of Iodine, 100% of it will be 127I, though the tiniest trace of 129I will exist. In a sample of Tellurium, 65% will be 128Te and 130Te. This makes Tellurium's average atomic mass a little higher than Iodine's.
The formula unit for calcium nitride is Ca3N2. To find the total number of atoms, you add the number of atoms in each element together: 3 calcium atoms + 2 nitrogen atoms = 5 atoms in total.
The chemical formula for Calcium Chlorate is Ca(ClO3)2. To find the total number of atoms, we add up the atoms in the formula: 1 Calcium atom, 2 Chlorine atoms, and 6 Oxygen atoms, making a total of 9 atoms in Calcium Chlorate.
Nitrogen triiodide (NI3) has 4 atoms, one of Nitrogen and three of Iodine therefore there are two elements present in NI3.
Iodine pentachloride (ICl5) has a total of 6 atoms - 1 iodine atom and 5 chlorine atoms.
Calcium iodide has a total of 3 atoms: 1 calcium atom and 2 iodine atoms.
The oxidation number of iodine in the iodate ion (IO3-) is +5. Each oxygen atom has an oxidation number of -2, giving a total of -6 for the three oxygen atoms. To neutralize the charge of -1 on the ion, the oxidation number of iodine must be +5.
In IF7, Fluorine is more electronegative than Iodine, so Fluorine will have an oxidation number of -1. Since there are 7 Fluorine atoms bonded to the Iodine atom, their total oxidation number is -7. To find the oxidation number of Iodine, you would set up an equation: I + (-7) = 0. Therefore, the oxidation number of Iodine in IF7 is +7.
The oxidation number of iodine in IF7 is +7. This is because fluorine is more electronegative than iodine, so each fluorine atom in the compound carries an oxidation number of -1. Since there are 7 fluorine atoms in IF7, the total charge from fluorine is -7, which means iodine must have an oxidation number of +7 to balance the charge.
Iodine is in group 17 of the periodic table, which means it has seven valence electrons. When iodine is the central atom in a molecule, it typically retains all seven of its valence electrons unless it forms bonds with other atoms. In such cases, some of these electrons are shared with surrounding atoms, but the total number of valence electrons associated with the iodine remains seven.
The oxidation number of lead (Pb) in PbI2 is +2. Iodine (I) typically has an oxidation number of -1 in compounds. Since there are two iodine atoms in PbI2, the total negative charge contributed by iodine is -2. This balances with the +2 charge of lead to make PbI2 neutral.
In an iodine molecule (I2), a total of two electrons are shared between the two iodine atoms in order to form a covalent bond.
The oxidation number of the IF4+ ion is +5, because iodine typically has an oxidation number of -1 in compounds and there are 4 fluorine atoms with an oxidation number of -1 each. The formal charge of the IF4+ ion is 0, because iodine has 7 valence electrons and each fluorine contributes 1 electron to the bonding, resulting in a total of 10 electrons (4 from fluorine atoms and 6 from iodine).
The atomic number of iodine is 53. So there will be 53 protons in the nucleus. For iodine atom to be neutral there will 53 electrons in total.
Iodine nuclei have one more Proton than Tellurium, but in general the Tellurium atoms have more neutrons, giving a higher average atomic mass. Elements often have isotopes, and their stated atomic masses are averages which look at the abundance of these isotopes. In a given sample of Iodine, 100% of it will be 127I, though the tiniest trace of 129I will exist. In a sample of Tellurium, 65% will be 128Te and 130Te. This makes Tellurium's average atomic mass a little higher than Iodine's.
The formula unit for calcium nitride is Ca3N2. To find the total number of atoms, you add the number of atoms in each element together: 3 calcium atoms + 2 nitrogen atoms = 5 atoms in total.