Sage-Tips

Which element is in Group 5A and period 2?

Group 5A (or VA) of the periodic table are the pnictogens: the nonmetals nitrogen (N), and phosphorus (P), the metalloids arsenic (As) and antimony (Sb), and the metal bismuth (Bi).

What ionic charge does Group 5A have?

3- charges
That is, the Group 7A nonmetals form 1- charges, the Group 6A nonmetals form 2- charges, and the Group 5A metals form 3- charges.

What element is in the 4th period and Group 5A of the periodic table?

We are given with 5 valence electrons, therefore we must find the element in group 5A. Going back to the periodic table, we find Arsenic (As) in period 4 and Group 5A.

What is the formula formed by X and Y?

When X reacts with Y, it looses the two valence electrons (valency 2). These two valence electrons are accepted by two Y atoms (valency 1). Hence, the molecular formula of the compound formed between X and Y is XY2 .

Which element is in Group 2 2A and Period 3?

Group 2A (or IIA) of the periodic table are the alkaline earth metals: beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra). They are harder and less reactive than the alkali metals of Group 1A….Group 2A — The Alkaline Earth Metals.

	3
1A	Na
2A	Mg
4A	Si

What element is in Period 2 Group 18?

helium
Chemically, helium behaves like a noble gas, and thus is taken to be part of the group 18 elements. However, in terms of its nuclear structure it belongs to the s-block, and is therefore sometimes classified as a group 2 element, or simultaneously both 2 and 18.

What ionic charge does Group 2A have?

+2
The valence of the element in the Group 2A (2) of the periodic table is two. The elements present in the group 2A (2) can donate two electrons from the outermost valence shell to form a cation. The charge on the ion after the loss of 2 valence electrons from the elements in group 2A (2) will be +2.

What happens to Group 2A elements when they form ions?

In this case elements located in group 2 will always lose electrons to become cations. Basically they will lose 2 electrons to form cations with charge of +2. Hence Group 2A elements form ions by losing two electrons.

Which element is in period 2 and Group 14?

Carbon
SALIENT FEATURES OF GROUP 14 (CARBON FAMILY) ELEMENTS

Period	Element	Symbol
2	Carbon	C
3	Silicon	Si
4	Germanium	Ge
5	Tin	Sn

Do these elements belong to the same group?

(ii) Yes, these elements belong to the same group as they have the same number of valence electrons.

Which element is in Group 3 Period 4?

Period	Group
2	Li 3	C 6
3	Na 11	Si 14
4	K 19	Ge 32
5	Rb 37	Sn 50

What is the element in Group 18 and Period 6?

Period 6

Group	1	18
Atomic # Name	55 Cs	86 Rn

What is the valency of X in the compound X3Y2?

As compound is X3Y2 and Y is -3 so in X3Y2, Y valency which is 3 will be written on the lower right side of the X, and valency of X, which is 2 will be written on the lower right corner of Y and as the Y given charge is -3, so on that basis X given charge is +2. . , Broad science interest. Chemistry study.

What is the general formula for the compound XCO3?

Challenge Write the formula for an ionic compound formed by ions from a group 2 element and polyatomic ions composed of only of carbon and oxygen. The polyatomic ion is carbonate (CO3-2). The general formula is XCO3, where X is the symbol of a group 2 element. Name the following compounds. 28. NaBr sodium bromide 29. CaCl2 calcium chloride 30.

How do you write the general formula for ionic compounds?

Challenge Write the general formula for the ionic compound formed by elements from the two groups shown on the periodic table at the right. The general formula is XY2, where X represents the group 2 element and Y represents the group 17 element. Write formulas for ionic compounds composed of the following ions. 27.

How many atoms of d combine to form a compound?

1 atom of element D combines with 2 atoms of element E to form a compound. ∴ Formula of the compound = DE 2 2. Element X has a proton number of 13.