Draw Element Using Circles as Atoms

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Atoms and molecules

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Central points

• are the building blocks of everything.
• Atoms can grade potent bonds with each other, making .
• A pure substance made from only i type of atom is chosen an element. Elements are listed on the periodic table.
• Elements tin combine to make compounds.

Atoms and molecules

Lookout man this video to find out more than about atoms and molecules.

Teacher: What do you think yous're made of?

Presenter: SIGHS

Big question. Grit, conclusion, hardworking, handsome, charming, funny.

Teacher: Well, I guess. But you're actually fabricated of atoms. In fact, everything is made of atoms.

Presenter: It's funny, because I don't call up seeing any atoms last fourth dimension I looked in the mirror. Only these handsomely, devilish adept looks.

Instructor: Well, atoms are the tiny particles that are too minor to run across, even with a microscope.

So if people were the size of an cantlet, the entire population of the globe would fit into a box about 1000th of a millimetre beyond.

Presenter: Wow, teeny tiny. Well, is there a mode to help the states visualise atoms to help us learn about them?

Teacher: Well, we usually imagine atoms to be like tiny balls like this. At present, to make the diagrams simpler we often just draw them every bit circles. So now an atom is the smallest particle of an chemical element. There are over one hundred different elements and these are all made of atoms.

Presenter: OK. Well, earlier we get into this further, allow's bank check out the top things to know about all of this.

VO: Particle diagrams.

An cantlet is the simplest particle of an element. In a particle diagram, atoms are represented by a single coloured circle. When atoms of two or more elements bond together, they brand a chemical compound. These clusters of strongly bonded atoms are chosen molecules. Meet how they're represented past 2 circles of unlike size and color that are joined together. This particle diagram represents water or, to utilize its chemical formula, H₂O which is a compound of the elements hydrogen and oxygen.

In one molecule of water, in that location are ii hydrogen atoms and ane oxygen atom. Particle diagrams can also bear witness the ratio of atoms of each chemical element in a compound which in plough can tell united states the formula of the compound - H₂O.

Presenter: OK, let'due south make sense of all this with Mrs Roberts. Are elements made upward of a mixture of unlike types of atoms?

Teacher: No, elements are fabricated of merely one type of atom. And so, unlike elements are made of dissimilar atoms. For example, we've got atomic number 82 and we've got gold. They're both elements.

Presenter: Mm-hm.

Instructor: Merely a piece of pure gold will contain only gold atoms, whereas a piece of pure lead will contain merely lead atoms.

Presenter: I go it, right. And and so can we mix different atoms together?

Teacher: Yep. And so, two or more elements that chemically bond together will form a compound.

Presenter: Ah, right. OK, so, can y'all give the states some examples of compounds? Could I find some at home?

Teacher: Absolutely. We're surrounded by lots and lots of dissimilar compounds all of the time. For example, we've got water. Water is a compound of hydrogen and oxygen. The chemical name for water is H₂O because each of its molecules incorporate ii hydrogen atoms and one oxygen atom.

Presenter: And then we phone call these molecules?

Teacher: Yes. So, a molecule is a give-and-take we use to represent the simplest unit of some compounds. These piffling red blobs correspond the oxygen atoms. And then the 2 white circles, they correspond the two hydrogen atoms that are chemically bonded together.

Presenter: And so all of these molecules together make water, which is a compound.

Teacher: Right.

Atoms

Atoms are the edifice blocks of all matter. Everything is made of atoms - even yourself.

Atoms are the smallest particle of an , which are far too small to see. Even the almost powerful microscopes cannot visualise a single atom. If the globe's population of 7 billion people were the size of an atom, they would take up less than 1mm of space.

In scientific discipline, the give-and-take can be used in many ways. It is a single piece of matter from an chemical element or a compound, which is as well small to be seen. Particles can exist atoms, molecules or ions.

Elements

An element is a pure substance which is fabricated from only one type of atom. Everything in the universe contains the atoms of one or more than elements. The atoms in i element are all the same as each other, but they are different from the atoms of whatever other elements. In that location are 118 different elements. They are listed on the . Examples of elements include oxygen, hydrogen and carbon.

Molecules

Molecules are fabricated when two or more than atoms chemically bond together. Atoms from different elements tin can combine. When the atoms are from dissimilar elements, the molecule can also be chosen a compound.

The atoms of some elements similar helium do not form bonds. Helium atoms are single atoms.

The atoms of elements such as hydrogen, nitrogen and oxygen join in pairs to make molecules.

Water is made of molecules. Each water molecule is made from 2 hydrogen atoms chemically bonded to 1 oxygen cantlet. This means that the chemical formula of water is H₂O.

Carbon dioxide is made of molecules of a carbon cantlet bonded to two oxygen atoms (CO₂).

Cartoon atoms and molecules

Atoms can exist fatigued as circles. But all the atoms of an element need to await exactly the same.

When drawing a diagram of molecules fabricated from the atoms of more than ane chemical element, different sizes and colours tin testify the unlike elements.

There are no rules for the colours of the atoms when cartoon them.

They tin can exist whatever color.

Examples

H2o (H₂O) molecules contain one oxygen atom and two hydrogen atoms.

Hither, the oxygen atom is blood-red and the hydrogen atoms are white.

Ethanol is a much larger molecule made of 3 types of atoms. Its formula is CH₃CH₂OH.

Here, the oxygen atom is red, carbon is blackness and hydrogen is white.

A brawl-and-stick model of methyl hydride

Molecules can be drawn in unlike ways. In this diagram of methane (CH₄) the chemic bond between atoms is shown as a stick.

Ane molecule of the compound methane is made from one carbon atom and 4 hydrogen atoms.

Single element molecules

• Some molecules are fabricated from i type of cantlet. This means the molecule is an element.
• Oxygen is a non-metal element and is found naturally every bit a molecule. Each one is made up of two oxygen atoms that are strongly bonded together.
• At room temperature oxygen is a gas.

An oxygen molecule always exists as a pair of atoms.

Exam your cognition

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Source: https://www.bbc.co.uk/bitesize/topics/zstp34j/articles/zc86m39

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