Question

what can form a ionic bond

Answer 1

welcome to openstudy.

what is your problem with this question?

Answer 2

new question how many protons are there in an atom if there is 7 protons molecules?

Answer 3

that I understood. ;-)

but I want to know from you, whether you thought about the answer yourself. what can you tell me about an ionic bond, or chemical bonds in general? and what, in your opinion, is the 'stuff' that can form ionic bonds?

Answer 4

also, I'm german. so, for me to understand your question, please use proper english. I didn't understand your second question.

Answer 5

okay, so I know that an ionic bond is a bonding of a metal and a non metal..... but does that mean there a positive and a negative charge or what?

Answer 6

For my second question, i was wondering how many protons an atom could have if that atom had seven protons

Answer 7

yes, precisely. :-)

you see, the alkaline metals only need to lose one electron in their outermost orbit to reach noble gas electron configuration, which is very stable. They don't hold on to that one electron with a very strong force.
this is why you can not see pure elemental sodium. it oxidizes REALLY quickly! it also is very reactive.

halogens, on the other hand, only need to GAIN one electron to reach noble gas configuration. this is why they appear paired. So if they are not paired, for some reason, they emit a really strong force to pull that last electron to them.

These to effects result in an ionic bond in salts like sodium chloride, for example. The chlorine atom pulls on the electron of the sodium atom, and because sodium doesn't want it anyway, ions are formed.

If you want to calculate whether two elements will form an ionic bond, just take a look at the electronegativity values. If the difference is greater than 2, they usually will form an ionic bond.

Answer 8

'For my second question, i was wondering how many protons an atom could have if that atom had seven protons.'

Still doesn't make sense to me :( sorry!

Answer 9

okay thanks!

Answer 10

and for the second question, lets say for example there is seven protons surrounding one atom. How many protons would be around the atom? Would it still be considered seven protons or would it be something else?

Answer 11

okay, maybe I need to clear things up for you.

protons do not 'surround' anything. protons are inside the CORE of an atom. the thingies that surround the atomic core are called 'electrons'.

want to rephrase your question now? =)

Answer 12

oops i meant to say electrons, but how many electrons would there be surrounding an atom if there is seven electrons?

Answer 13

I still don't get what you're trying to ask me :(

if an atom has 7 protons in its core, and 7 electrons surrounding it, then that (plus a few neutrons in its core) makes an 'element' (nitrogen) without charge.

if the electron count differs from the proton count, then you get an 'ion'. Theoretically, you can create every type of ion, but there are a few stable ones like Na+ and Cl-.

If you change the number of electrons, then the element name does not change. 1 proton and 1 electron is 'hydrogen' or 'H'. 1 proton and 2 electrons is 'H-' - still hydrogen!

If you change the number of protons, the element name changes. 2 protons (with 2 neutrons to stabilize) and 1 electron would be 'helium' or 'He+'

Answer 14

okay i understand that. New question, Whats the most common molecule in the human body?

Answer 15

take a guess ;-)

Answer 16

If i had to guess i would say oxygen and hydrogen

Answer 17

very good!

by numbers, hydrogen is the most common. by actual weight, oxygen is.

our body is 72% water. the rest is basically peanuts =) water is H2O, with 16/18 of the molecular weight contributed by the O.

Answer 18

so now something is bothering what is matter made up of atoms or molecules?

Answer 19

tell me first: what is the difference between atoms and molecules?

Answer 20

an atom is a basic unit of a chemical and a molecule is made up of atoms

Answer 21

yes, absolutely.

so in this sense, your question should be answered like this:
It doesn't matter whether matter is made from atoms or molecules. Since molecules are made from atoms, everything is made from atoms :-)

But I think I get your question.

A molecule is several atoms that are bound by chemical bonds. Now, there are 3 kinds of chemical bonds: covalent bond, metallic bond, ionic bond. Nearly every atom that makes up matter searches for some kind of chemical bond. If they can not attain it (inside a star, for instance), then they are alone, chamically. But on earth, almost every atom (except for noble gases) is engaged in some kind of chemical bond. So technically, the earth is made from molecules.