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kicyunya [14]
3 years ago
12

State the range of the ph scale

Chemistry
2 answers:
ryzh [129]3 years ago
8 0
The pH scale goes from 0-14. 0-6.9 is acidic, 7 is neutral and 7.1-14 is basic
Nady [450]3 years ago
7 0
It would be 1 to 14
1_7 acid
7_14 base
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When we move across a period from left to right then there will occur an increase in electronegativity and also there will occur an increase in non-metallic character of the elements.

As calcium (Ca) is a group 2A element and rubidium (Rb) is a group 1A element. Hence, Rb being an alkali metal is more metallic in nature than calcium (alkaline earth metal).

Both magnesium (Mg) and radium (Ra) are group 2A elements. And, when we move down a group then as the size of element increases so, it becomes easy of the metal atom to lose an electron.

As a result, there occurs an increase in metallic character of the element. Hence, Radium (Ra) is more metallic in nature than magnesium (Mg).

Also, both bromine and iodine are group 17 elements. Since, both of them are non-metals and non-metallic character increases on moving down the group.

Therefore, bromine (Br) is more metallic than iodine.

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