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Calcium2+
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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?
Group 8 or 18: the 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.
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
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.
Does group 18 on the periodic table lose or gain electrons?
it has nothing
When all group IIA lose their valence electrons the remaining electrons configurations are the same as for what family of elements?
Group 8 or 18: the 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.
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
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.
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.
An ionic compound with two ions per formula unit The anion has 3 times as many electrons as the cation?
Potassium Iodide, symbol K+I- K+ (19) - 1 = 18 electrons and 18 * 3 = 54, so I- (53) + 1 = 54 electrons
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 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 the group of elements in periodic table with eight electrons?
group 18, noble gases
