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Determining bonds

Posted: Mon Nov 11, 2019 12:11 am
by Leslie Almaraz 4G
How do you know if two elements form a covalent bond? Is this known through determining if an element is a non metal and a metal?

Re: Determining bonds

Posted: Mon Nov 11, 2019 12:26 am
by Vanessa Chuang 4F
Yes, we can determine if covalent bonds are formed through the elements that make up that bond. Ionic bonds are when a non metal and a metal have a bond. Covalent bonds happen only between two non-metal elements. Within covalent bonds, there are also different types of covalent bonds as well.

Re: Determining bonds

Posted: Tue Nov 12, 2019 5:45 am
by Michelle Song 1I
A general rule to remember is that if the electronegativity difference is >2.0, the bond is ionic and if it's 1.5> and >.5 then it's polar covalent. If it's <.5 then it's nonpolar covalent.

Re: Determining bonds

Posted: Tue Nov 12, 2019 8:39 am
by Ashley Tran 2I
A quick tip to always keep in mind is hydrogen is a nonmetal so when you see HCl/HBr/HI it's tempting to say it's an ionic bond because H has a +1 charge and halogens have a -1 charge and they're on opposite sides of the periodic table like most ionic compounds. However, that'd be incorrect, these compounds have a covalent bond.

Re: Determining bonds

Posted: Wed Nov 13, 2019 1:03 am
by selatran1h
ionic bonds are between a nonmetal and metal while covalent bonds are between two nonmetals.