PERIODIC TABLE Flashcards
(14 cards)
What are the parts of an atom?
Nuclei (plural of nucleus) - centre of the atoms
Protons & neutrons - what is inside each nucleus
Electrons - the space around the nucleus
What is electron configuration?
The arrangement of electrons in the electron shell
What is metallic bonding?
Metallic bonding is between metal atoms
What is ionic bonding?
Ionic bonding is between metal atoms and non-metal atoms
What is covalent bonding?
Covalent bonding is between non-metals
Describe metallic bondings?
Metallic bondings have weak structures so they lose electrons, that is why they are more positive.
Describe ionic bondings?
They usually remove electrons from the outer shell to form ions. The electrostatic forces pull positive and negative ions together which forms a strong ionic bond. They form a lattice which means the positive and negative ions are being held together by the positive and negative charge.
Describe covalent bonding?
Covalent bondings share the electrons from the outer most shell, because of this grip form the shared electrons it holds the 2 atoms together. Non metal ONLY share electrons to fill their outer shell.
What are the family groups?
Group 1 - alkali metals Group 2- alkaline earth metals Group 3-12 - transition metals Group 17 - halogens Group 18 - noble gases Elements 57-71 - lanthanides Elements 89-103 - actinides
What does the group number show?
It shows how many electrons are on the electrons outer most shell.
What does the period number show?
The period number shows how many shells the electron has.
What are the charges of parts of an atom?
Proton - positive Electron - negative Neutron - neutral Nucleus - positive Atom - neutral
Where are metals and non metals found on the periodic table and what are metalloids?
Metals on the period table are found on the left and the non metals are in the upper right corner. The zig zag through both of these has 8 elements, these elements are called metalloids.
How heavy are metals?
A metal is known to be heavy if it has a high density and is toxic/poisonous at low concentrations.
