Karteikarten
6.1 Elements
Karten in diesem Stapel (30)
- 16.1 ElementsBy: Jeon Zaskia Rizal :)
- 2What are atoms?Atoms is the smallest building blocks of matter
- 3How many types of atoms there are?100 types of atoms
- 4Through what we see the atoms?STM (scanning tunneling microscope)
- 5What is STM?STM is a microscope that can show atoms by scanning a tip across the suface of crystals and sensing the atoms as bumps on the surface
- 6What is elements?Elements: Substances that are made up of just one type of atom
- 7What are the example of elements?Iron, hydrogen, copper, oxygen, and gold
- 8What are properties?Properties is a unique set characteristics that each element has
- 9What are the two type of properties?- Metallic
- Non-metallic - 10What are the properties of the metallic elements?- Tend to be shine or can be polished to make the shine (lustrous)
- Good conductors of heat and electricity
- Can be hammered into sheets (malleable)
- Can be stretched into wires (ductile) - 11What are the example of the metallic elements and what are their properties?Iron: has been bent into the shape of a spring
Mercury: the only metal that is liquid at room temperature, but still conduct electricity and heat
Gold: typical metallic shine
Copper: typical metallic shine - 12What are the different of non-metal with metal?No-metal elements have lower melting and boiling points than metals and tend to be solids or gases at room temperature
- 13What are the properties of non-metal?- Tend to be dull
- Do not conduct electricity and heat
- Break or crumble when you bend them (brittle) - 14What are the one example of non-metallic elements?Hydrogen
- 15How many elements there are in periodic table?There are 118 elements
- 16How many there are made in laboratory and occurs naturally?- 98 occurs naturally
- 20 made in laboratory - 17What are the 2 ways to name a chemical symbols?- Often the chemical symbol of an element comes directly from its name
- Sometimes the symbol of an element does not appear to relate to the name at all - 18What are three ways that atom can exist?- As a single atoms
- In cluster of atoms called molecules
- In large grid-like structures called crystal lattices - 19What are monatomic elements?Monatomic elements are an element that is made up of of many individuals atoms
- 20What are the only 6 element that is monatomic elements?- Helium (He)
- Neon (Ne)
- Argon (Ar)
- Krypton (Kr)
- Xenon (Xe)
- Radon (Rn) - 21What are the properties of helium?Helium has a low density that it is lighter than air, allowing to float
- 22What are function of neon?Neon (Ne) used in neon light for creating signs of different colours
- 23What are molecules?Molecules are cluster of two or more atoms bonded (joined) together
- 24How many type atoms does every molecule have?Every molecules contain just one type of atoms
- 25What does molecular formula show?Molecular formula shows what atoms are in a molecule and how many there are each
- 26What does phosphorus?Phosphorus means having four atoms
- 27What are crystal lattices?Large-grid structures that repeat the same arrangement of atoms over and over again
- 28Why does metal important?Metals are important materials for the construction and manufacture of a large variety of objects ------- from buildings and bricks through to trains, planes, cars, tools and jewellary
- 29What are the example of non-metallic lattices?Silicon and carbon (which form crystal lattices to make graphite and diamond)
- 30—Thank you :)
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- 1 Science Karteikarten am 6.1 Elements, erstellt von zaskia rizal am 20/05/2019.
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