Fundamentals In Chemistry Flashcards
1
Q
What substances are shown in the periodic tables?
A
Elements.
2
Q
What atom does H represent?
A
Hydrogen.
3
Q
What type of substance is sodium chloride, NaCI?
A
A compound.
4
Q
Why are atoms neutral?
A
Equal numbers of protons and electrons.
5
Q
How many protons, neutrons and electrons are there in an atom of aluminium (atomic number 13, mass number 27)?
A
13 protons, 13 electrons, 14 neutrons.
5
Q
Name an example of a compound with ionic bonds.
A
Metal/non-metal
Sodium chloride, magnesium oxide.
