Elements_____4 Questions

2006-10-14 5:11 am
Decide which one in each of the following groups of elements is different from the others. Give reason(s) for you choice in each case.

1. Iron, copper, mercury, silver

2. Magnesium, sulphur, lead, tin

3. Idoine, oxygen, nitrogen, argon

4. Phosporus, bromine, helium, carbon (Graphite)

回答 (3)

2006-10-14 5:23 am
✔ 最佳答案
1)mercury because it is the only metal in liquid state compared with these four elements.
2)sulphur because it is the only non-metal in these four elements.
3)idoine because it is the only element that is not in gas state compared with these four elements.
4)carbon(graphite) because it is the only element that can conduct electricity in these four elements.
2006-10-15 8:57 am
1) Mercury is different from other because it exist as liquid state at room temperature
and pressure

2) Sulphur is different from other because it is a non-metal element
3) iodine is different from other because it exist as solid at room temperature and
pressure
4) helium is different from other because it is a gas at room temperature and pressure
or carbon(graphite) because it is the only one which can conduct electricity in these
four element and non-metal
2006-10-14 5:35 pm
1.mercury
it is the only metal in liquid state compared with these four elements.

2.sulphur
because it is the only non-metal in these four elements.

3.idoine
it is a solid ,the other three are gas state.

4.carbon(graphite)
it is the only element that can conduct electricity in these four elements.


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