Chemistry questions

[sciart]

Hi ,

 

Nice to meet you all. I have a few questions on Chemistry.

1. What are transition elements? Are they metals or non-metals?

2. Can elements be ion and molecule? Are there any difference?

3. What 'element' can form an ionic bond and covalent bond?

4. What are the differences between conductor and electrolyte, insulate and non-electrolyte?

5.What is the difference between mass(i.e. a.m.u) and weight(kg)?

 

Thanks in advance. I really want to know the answers

[RyanJ]

Firstly welcome to the forums!

 

1. Read this

2. Do ot understand, an element is not charges so it can't be an Ion, nor can it be a molecule because that would require a combination of more then one type of element joined together by chemical bonds. So the answer to these is not they are not them but can form them.

3. Lots can lat time I checked. It depends on the element and what they are bonded with.

4. Again, look on Wikipedia for the information you require

5. Mass is defined as the amount of “stuff” you have, weight is the downward force the object experiences as a result of gravitational attraction.

 

Cheers,

 

Ryan Jones

[5614]

5.What is the difference between mass(i.e. a.m.u) and weight(kg)?

Technicality: weight is a force (caused by gravity) so the unit is Newtons (N) and not kg.

 

If you change gravity then the weight will change, because weight is caused by gravity. Mass is always the same.

[hybrid04]

Generally ionic bonds are formed on the extremes of the periodic table. Metals and halides for example usually form ionic bonds with eachother while stuff in the middle forms covalent. Atoms like carbon with 4 valence e- tend to share.