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When all group IIA lose their valence electrons the remaining electrons configurations are the same as for what family of elements?
When group IIA elements lose their valence electrons, they form cations with a +2 charge and have the same electron configuration as the nearest noble gas in the periodic table, which is group VIIIA (noble gases).
What is a ternary compound whose cation is in group IIA and has 18 electrons?
Use this information to help with naming Ternary Ionic Compounds.How do you write a formula for a TERNARY ionic compound?Definitionput the polyatomic ion in PARENTHESES!switch the charges of the cation and anionplace the charge of the anion OUTSIDE the parentheses if needed!Example: Ba+2 (SO4)-2Ba(SO4)Then, use in information given about the anion (SO4 in the above example) to help you figure out which cation you're working with. Since the question states that the cation is in group 2A and has 18 electrons. If this question tells you that the anion contains only carbon and oxygen and has a 2- charge, then you know that the cation is going to have a 2+ charge (to make it even/neutral). So, this has to be Ca(CO3) aka calcium carbonate. Calcium carbonate can be found in antacids and chalk, and is also a component of sea shells.
How do you figure out how many electrons are in groups 13-18?
The total number of electrons in any atom is the same as the atomic number. The number of valence electrons in an atom in columns 13 - 18 is the second digit of the column number.
What is the relationship between valence electrons and there location on the periodic table?
The first group elements have 1 dot on their electron dot diagram, the group 2 elements have 2, group 3-12 elements have 2 electrons (with exceptions), group 13: 3 electrons, group 14: 4 electrons, group 15: 5 electrons, group 16: 6 electrons, group 17: 7 electrons, and group 18: 8 electrons.
What is a compound with 2 ions and the -1 anion has 8 more electrons than the cation?
NaCl - Na+ has 10 electrons and Cl- has 18 electrons
When all group IIA lose their valence electrons the remaining electrons configurations are the same as for what family of elements?
When group IIA elements lose their valence electrons, they form cations with a +2 charge and have the same electron configuration as the nearest noble gas in the periodic table, which is group VIIIA (noble gases).
How many electrons are there in the common monatomic calcium cation?
18 electrons.
What is a ternary compound whose cation is in group IIA and has 18 electrons?
Use this information to help with naming Ternary Ionic Compounds.How do you write a formula for a TERNARY ionic compound?Definitionput the polyatomic ion in PARENTHESES!switch the charges of the cation and anionplace the charge of the anion OUTSIDE the parentheses if needed!Example: Ba+2 (SO4)-2Ba(SO4)Then, use in information given about the anion (SO4 in the above example) to help you figure out which cation you're working with. Since the question states that the cation is in group 2A and has 18 electrons. If this question tells you that the anion contains only carbon and oxygen and has a 2- charge, then you know that the cation is going to have a 2+ charge (to make it even/neutral). So, this has to be Ca(CO3) aka calcium carbonate. Calcium carbonate can be found in antacids and chalk, and is also a component of sea shells.
A cation of calcium has a 2 plus charge how many electrons does it have?
calcium has 20 electrons.when it loses 2 electrons, it has 18 electrons.
If calcium is most happy with a charge of 2 how many electrons would it have?
The neutral atom of calcium has 20 electrons; the cation Ca2+ has 18 electrons.
How do you figure out how many electrons are in groups 13-18?
The total number of electrons in any atom is the same as the atomic number. The number of valence electrons in an atom in columns 13 - 18 is the second digit of the column number.
What is the number of electrons in the in the outer shell of K plus?
K is potassium, and it is found in group I and period 4. It is an s block element. So, being in group I, this indicates it has ONE electron in the outer shell (4s).
Which group contains eight valence electrons?
Group 18 contains eight valence electrons, namely the noble gases.
How many electrons are contained in an ion formed from an atom of K?
Potassium (K) is an alkali metal whose atoms have one valence electron. The atomic number of K is 19, which means its atoms have 19 protons in their nuclei. A neutral K atom also has 19 electrons. An atom of K will lose its single valence electron to become a K+ cation. Therefore, there are 18 electrons in a K+ cation.
How can the number of valence electrons be determined from the periodic table?
By looking at the group number you can tell how many valance electrons there are ex: Group 1= 1 valance electrons Group 2-12= 2 valance electrons Group 13= 3 valance electrons Group 14= 4 valance electrons Group 15= 5 valance electrons Group 16= 6 valance electrons Group 17= 7 valance electrons Group 18= 8 valance electrons
What is the ionic charge of an ion with 15 protons and 18 electrons?
An ion with 15 protons and 18 electrons has a net charge of +3 since it has 3 more electrons than protons. This ion would be classified as a cation.
How many electrons are in the outer shell of the elements in the groups?
the number of valence electrons is directly proportional to the group number in which the element is forund in the periodic table. for example, chlorine is in Group 7 so it has 7 valence electrons.
