A couple of different cases could be made here, but the most obvious one is that silicon is the odd element out. The element magnesium is in Group 2, which is the Alkaline Earth metals. Both aluminum and lead are Poor Metals, and silicon is a Metalloid. The operative word for the first three elements is metal. And silicon is not one. Use the link below to see the really cool Periodic Table posted at Wikipedia. Note that this table is interactive, and each element is a hyperlink to the Wikipedia post on that element. Bookmark this bad boy!
Silicone. the others are metals, silicone isn't.
brass , copper and iron
Magnesium
Yes the product of two odd integers is odd. The proof lies in recognizing that 2 times an integer is an even integer. Like, given two arbitrary integers a and b, 2a+1 and 2b+1 are odd. And the product of (2a+1)(2b+1) can be represented as 2c+1, where c might be even or odd - it doesn't matter. c = 2ab+a+b, in fact (check it out.) However, 2c+1 is clearly an odd integer.
the odd one outby amra mohideen
Any number of the form 2*n+1 where n is an integer.
No only water it's the odd one.
Advantages: 1. Safety from enemies. 2. Safety from odd whether.
sulfur
It is odd to encounter a "gallon" of silicon. This metalloid has a density of 2.329 grams per cubic centimeter, and since there are about 3785.412 cubic centimeters in a gallon, your gallon of silicon, which is a solid at room temperature, will weigh about 8816.22 grams. That's about 8.816 kilograms, and that's about 19.4 pounds.
Water - is the only one that is totally non-toxic
Silicon does not form ionic compounds containing Si cations. It is after all a non-metal. There are some "odd" compounds called silicides binary compounds of metals with silicon but generally these are not ionic, only those with the more reactive metals have ionic nature, silicon forming cluster anions (Zintl compounds) such as Si44- (isoelectronic with P4 molecule)
odd. odd=odd odd+odd=even odd+odd+odd=odd it keeps alternating in that fashion
23 is an odd number.
because... odd+odd=even even+odd=odd e.g 1+1+1=3 odd+odd+odd=odd
Odd. Even + Even = Even Odd + Odd = Even Odd + Even = Even + Odd = Odd
27 is an odd number.
49 is an odd number numbers ending in 1,3,5,7,9 are odd.
odd
431 is an odd number