C1+2 : Atomic Structure And Periodic Table Flashcards
What is in the middle of an atom?
Nucleus
What is the nucleus made of?
Protons and neutrons
What charge does a Proton have?
Positive or +1
What charge does a neutron have
Neutral or 0
Where are electrons in the atom?
Around the nucleus in electron shells
What charge do electrons have?
Negative or -1
What is the relative mass of protons?
1
What is the relative mass of a neutron?
1
What is the relative mass of an electron?
1/2000 of a proton or electron. Virtually no mass
What charge do non ionic atoms have?
Neutral or 0
Why do non-ionic atoms have 0 charge?
Same amount of protons as electrons
What is the bottom number of the nuclear symbol for an element on the periodic table?
Atomic (proton number)
What is the top number of the nuclear symbol for an element in the periodic table?
Mass number
What is an ion?
An atom that has lost or gained an electron?
What is an element?
A substance made of atoms with equal protons in the nucleus.