Flashcards
Module 6.1 Elements
Flashcards do conjunto (28)
- 1Module 6.1By Rahma Abdelgadir
- 2What are the building blocks of the universe?Atoms
- 3How many types of atoms are there?100 types of atoms
- 4What microscope can see atoms?Scanning tunnelling microscope (STM)
- 5What are elements?Elements are substances that are made upon only one atom.
- 6Examples of elements1. Copper
2. Oxygen
3. Iron
4. Hydrogen
5. Gold - 7Define propertiesUnique set of characteristics of a substance
- 8How are elements divided?Metallic and non-metallic elements
- 9Examples of metallic elements1. Aluminum
2. Iron
3. mercury
4. Sliver
5. Calcium - 10Metal properties1. Lustrous
2. Solid at room temp
3. Good conductors of heat and electricity
4. Malleable
5. Ductile - 11Examples of non-metallic elements1. Carbon
2. Iodine
3. Chlorine
4. Sulfer
5. Radon - 12Non-metallic properties1. Dull
2. Bad conductors of heat and electricity (insulators)
3. Brittle - 13Whats special about mercury?Its the only metal liquid at room temperature
- 14Whats special about bromine?Its the only non-metallic element liquid at room temperature.
- 15Where are all the elements placed?In a table called the periodic table
- 16How many elements are there in the periodic table.118
- 17How many man-made and natural?98 Natural
20 Man-made - 18How is the periodic table listed?From lightest to heaviest
- 19How can atoms exist1. Single atoms
2. Molecules
3. Crystal lattices - 20Define monatomic elementsAn element that is made up of many individual atoms. They are very rare elements.
- 21what are all the monatomic elements?1. Helium (He)
2. Neon (Ne)
3. Argon (Ar)
4. Krypton (Kr)
5. Xenon (Xe)
6. Radon (Rn) - 22Define moleculesThere are clusters of two or more atoms joined together.
- 23WElements that are identical and are mostly non-metallic.
- 24Examples of molecular elements1. Nitrogen molecule
2. Phosphorus molecule
3. Sulfur molecule - 25In each oxygen molecule how many atoms does it contain?Two oxygen atoms
- 26What are crystal lattices?They are large grid-like structures that repeat the similar arrangement of atoms over an over.
- 27What percentage of elements are metals?80% Metal elements
- 28What is special about metal lattices?The atoms in metal lattices can move across one another, which allows them t be bent, hammed and drawn into wires.