Flashcards
Building Blocks
Cards in this deck (11)
- 1What are atoms?Atoms are the basic building blocks of all materials.
- 2What is an element?An element is a substance made up of only one type of atom.
- 3Each element has a ______Symbol
- 4A ____ is formed when two or more atoms join togetherMplecules
- 5What is a compound?When a molecule is made up of two or more different types of atoms we call it a compound.
- 6Give an example of a compound elementWater and Carbon dioxide are compound because each is made up of more than one element. Hydrogen gas and Oxygen gas are not compounds because each is composed of one element
- 7What is the atom made up off?Sub-atomic particles
- 8What are the 3 sub atomic particles?- Protons
- Neutrons
- Electrons - 9What is the atomic number?The atomic number tells you how many protons there are in one atom of the element
- 10What is the mass number?The mass number tells you how many protons and neutrons there are in the atom
- 11How many electrons can the first, second and third shell contain?first = 2
second and third= up to 8
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- A) Science Junior Cert Revision (Chemistry ) Flashcards on Building Blocks, created by Josh Humphries on 03/05/2019.
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- Josh Humphries
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