A comma or a semicolon
They show the number of atoms that element has in that compound.
simplest ratio of the ions
No. The chemical formula of an ionic compound is a formula unit and represents the lowest whole number ratio of ions in the compound. Ionic compounds are not made of molecules.
It is most likely a "Makers-mark". It is a mark put on the chain to show who made the piece of jewelry. It will have a 10k 14k or 18k beside it if it is gold.
For Geometrical isomerism the free rotation about the bonds should be restricted so a double bonded or cyclic compound may show the geometrical isomerism.
A compound sentence is basically a sentence that can be broken into two. Here is one example: The weather was horrible, but the caravan continued to travel. Here's another one: the news was not that great: he was in grave condition. Notice how these two sentences are separated by a punctuation. In the first instance it was separated by a comma, the second one by a colon. I you do not separate the two sentences by some type of proper punctuation then this becomes a run-on sentence.
The apostrophe is used to show that a noun is possessive.
Exclamation marks are punctuation marks used at the end of the sentence. You use them when you want to show emphasis, high emotion, or excitement.
The apostrophe.
An ellipsis (...) is a punctuation mark that indicates that more information or words will follow. It is commonly used to show that a sentence or thought is unfinished or to create suspense in writing.
An ellipsis (...) is a mark of punctuation that typically indicates that more information is to come. It is used to show that there is a pause or omission in the text.
A hyphen is a punctuation mark that is used to link words or separate syllables. The three main cases for their usage are to show word breaks, in compound words and to join prefixes to other words.
Punctuation marks serve many functions. In ending a sentence, they tell us that it's time to stop and begin a new thought (and a new sentence). Usually, we can use a period, a question mark, or an exclamation mark to end a sentence. We use a period to show the end of a declarative sentence: I have finished with my homework. Tomorrow, we are going to the movies. These are complete sentences, and the period goes at the end, to show that this sentence is finished. We use a question mark when we are asking about something, or we need more information. Did she get accepted to college? May I borrow your dictionary? And then, there's the exclamation mark-- it tells us the sentence is expressing excitement of some kind. I can't believe I passed the exam! Don't say those terrible things to me!
Mary, Tom, Bob, and Terri went to the show.
a period would be after initials to show that it is an abbreviation therefore a period is used so what
There probably aren't any. An apostrophe is a "punctuation mark" and not a noun (like car) or a verb (like to jump) or an adjective (like happy). Punctuation marks usually do not have synonyms. An apostrophe is something you use in grammar to show possession or ownership. John's book. Mary's house. There is no other word for "apostrophe", and no other way to show possession other than using that punctuation mark.
To show that a person is speaking.