0
The order of compounds doesn't make a big difference, but the order for each of the elements within the compound does.
Example:
Ca + Cl2 -> CaCl2
As you can see on the right side, Calcium is placed in front of Chlorine, because in this case Calcium is a cation (positive ion) and Chlorine is an anion (negative ion). In compounds like this, the cation (positive) element is placed first, and the anion (negative) element is placed second.
The order on the left side doesn't really matter, seeing as there, Calcium and Chlorine are not bonded, although you will typically find that even though they are separate, they are still usually placed positive ion first and negative ion second, as shown.
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
What symbol is used on the periodic table to represent plutonium?
Not formula, but chemical symbol is Pu. No, he means formula (eg: Table Salt/ Halite - NaCl)
Why is helium's symbol He and not H?
The symbol (He) comes from the first two letters of the word Helium
Is NO a element or compound?
Nitric oxide or nitrogen monoxide (NO) is a compound made up of one nitrogen and one oxygen atom per molecule. A compound consists of two or more elements that are chemically combined. For elements with chemical symbols of two letters, the first alphabet would be in capital and the second alphabet would be in small letter.
What is formula is H2O?
water, H2OBut in chemistry the symbols must be upper case unless the symbol consists of two letters (Magnesium, Mg) and then the first letter must be upper case.
What is the first element of the actinides?
The first element in the actinide series is actinium , a chemical element in the periodic table that has the symbol Ac and atomic number 89.The actinide (or actinoid) series encompasses the 15 chemical elements that lie between actinium and lawrencium on the periodic table , with atomic numbers 89-103.The actinides get their name from the first element in the series , actinium.
How do you know which element comes first in a molecular formula?
The more or most electropositve element comes first.
In a formula for an ionic compound which element comes first?
The more or most electropositve element.
What is the element that is the first half of the chemical formula describing table salt the chemical symbol?
Sodium
Where does the chemical symbol of helium come from?
The symbol, He, comes from the first two letters of the element helium
Are chemical symbols placed in a certain way in a chemical formula?
more electropositive element first, followed by electronegative elements
Which symbol comes first in a chemical formula?
This depends on the type of compound. For metallic compounds, the metal comes first. For nonmetallic inorganic compounds the more electropositive element comes first. For MOST organic compounds, carbon comes first.
What is the chemical formula of the first carbohydrate molecule?
CHO is the element symbol if that's what you mean
How is an element represented in a chemical formula?
Each atom has its own elemental 'symbol' or 'formula', there are more than 92 elements: from number 1. Hydrogen (H) to number 92. Uranium (U). Examples: O for oxygen, C for carbon, N for nitrogen atoms.
What is the first element of berkelium?
Berkelium is a chemical element, not first or second.
What is the chemical combination of symbols that represents a compound?
Each element is given a symbol (a letter or a pair of letters where the first one is always a capitol letter and the second one is always a small letter). For instance the letter for Hydrogen is an 'H' and for Oxygen is an 'O'. When describing the formula for a chemical compound you use these symbols to say what elements it is made of and you follow each element with a number if there is more than one atom of that element in the compound. For instance water is made of one atom of Oxygen and two atoms of Hydrogen and therefore its chemical formula is: H2O
In a properly written chemical symbol what is the first figure?
A chemical symbol refers to a chemical element; the first letter of a symbol depends on the chemical element.
Which comes first in a chemical formula lithium or hydrogen?
Lithium. Lithium and hydrogen combine to make lithium hydride, an ionic compound, in which lithium is the cation (positive) and hydrogen is the anion (negative). The cation is always first in the chemical formula for an ionic compound.
