Chapters 29 and 30 - Atomic Structure and The Periodic Table Flashcards
Name 3 sub-atomic particles.
Electrons (negative charge)
Neutrons (no charge/neutral)
Protons (positive charge)
What is the location, mass and charge of a proton?
Location: Nucleus
Mass: 1 unit
Charge: +1
What is the location, mass and charge of a neutron?
Location: Nucleus
Mass: 1 unit
Charge: 0
What is the location, mass and charge of an electron?
Location: Outside nucleus in shells/orbits
Mass: 1/1840 units
Charge: -1
What is the atomic number?
The atomic number of an atom is the number of protons in the nucleus of that atom.
What is the atomic mass?
The atomic mass of an atom is the sum of the number of protons and neutrons.
How do you find the number of neutrons?
No. of neutrons = mass no. - atomic no.
What are isotopes?
Isotopes are atoms of the same element that have different numbers of neutrons.
What is the Periodic Table?
The periodic table is an arrangement of elements in order of increasing atomic number.
What is an atom?
The smallest particle of an element which still retains all the properties of that element. They consist mainly of space.
How many groups are there in the Periodic Table?
There is 8 groups and 7 periods (n=1, n=2, etc).
What is Group 1 in the Periodic Table?
Group 1 contains the Alkali Metals.
What is in Group 2 in the Periodic Table?
Group 2 contains the Alkaline Earth Metals.
What is Group 7 in the Periodic Table?
Group 7 contains the Halogens.
What is in Group 8 in the Periodic Table?
Group 8 contains the Noble Gasses. These all have full outer shells and are very un-reactive.
