Therefore in an atom there would be 53 protons and 53 electrons. Check Your Learning An ion of platinum has a mass number of 195 and contains 74 electrons. Since it can have more than 8 electrons for its outermost shell (really crazy stuff about atomic orbitals! How many protons and neutrons does it contain, and what is its charge? There are 7 valence electrons. Iodine is a non metal element. Conversely, if an ion has more electrons than electrons, it is negatively charged and is called an anion. The iodide ion I- has 54 electrons. There are 53 electrons in a single atom. Iodine will form an anion with -1 charge. •€€€€€€€€ 2 electrons (from each atom) •€€€€€€€€ Iodine (atom) gains electron(s) •€€€€€€€€ 1 electron or an electron (to each atom) •€€€€€€€€ iodide ion formed allow iodine ion •€€€€€€€€ iodide has negative charge / is a negative ion / particle allow iodine Iodine belongs to group 17, so it will gain one electron and attain noble gas configuration as it has 7 valence electrons. Due to the fact it is an ion of Iodine; I- there are 54 electrons as electrons are negatively charged. But the charge is 3+ therefore there are 3 more protons than electrons. Since the iodine is added as a 1− anion, the number of electrons is 54 [53 – (1–) = 54]. Cr3+ is the same idea, only in the opposite way. Cr3+ usually has 24 protons and electons. Determine the number of protons and electrons in each of the following ions. iodine ion with 54 electrons-1. How many protons and neutrons does it contain, and what is its charge? Iodine (symbol I) has atomic number 53, which means that it has 53 protons in the nucleus (by definition). Iodine is one of the halogens that gains one electron to fill its valence shell, giving it a 1- charge. Na+. ), It can possess many charges. There is no single charge on iodine (if you are referring to its oxidizing number). Check Your Learning An ion of platinum has a mass number of 195 and contains 74 electrons. Since the iodine is added as a 1− anion, the number of electrons is 54 [53 – (1–) = 54]. Iodine's atomic number is 53, meaning the 1- ion has 53 protons and 54 electrons. Check Your Learning An ion of platinum has a mass number of 195 and contains 74 electrons. However, when an atom has an unequal number of protons and electron, it has an electrical charge and they create ions. Since the iodine is added as a 1− anion, the number of electrons is 54 [53 – (1–) = 54]. If an ion has more protons than electrons, it is positively charged and is called a cation.
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