Apples and Elephants (Atoms and Elements) (FINISHED) Flashcards
On which part of the periodic table do you find non-metallic elements?
The right-hand side
What is the smallest existing part of an element?
An atom
What is Group 1 of the periodic table?
Alkali metals
What is Group 7 of the periodic table?
Halogens (not halloumi)
Helium, Neon, Argon and Krypton are found in group 0 and they are examples of…
Noble gasses
Define a molecule
A defined group of non-metal atoms that are chemically bonded
Define a compound
Two or more elements chemically bonded in a fixed ratio
Potassium phosphate contains potassium, phosphorous and what else?
Oxygen (the ‘ate’ part)
Define a mixture
Two or more elements or compounds are present without being chemically bonded together
Define a lattice
A regular three-dimensional arrangement of atoms (or ions) in a solid
How does mass change in a chemical reaction?
It doesn’t. The total mass of reactants = total mass of products
Which particles are found in the nucleus?
Protons and neutrons
What is the charge of an electron?
Negative
Which two subatomic particles have the same mass?
Protons and neutrons
What is the overall charge of an atom?
Zero
What does the atomic number tell us?
Number of protons. This determines the element
What does the mass number represent?
Number of protons + neutrons
What is the charge of a neutron?
Zero. No charge (neutral)
How many electrons can fit on the first electron shell?
2
What is the maximum number of electrons that can fit on the second electron shell?
8
