Elements & Compounds Flashcards
What are the 2 different ways atoms can combine
They can form molecules or crystal lattices
Finish the sentence: molecules always have __ or more different kinds of atoms
Two
Finish the sentence: molecules and crystal lattices are always combined in a __ __
Fixed ratio
How are the atoms in a compound held together
Held together by chemical bonds
What forms during chemical reactions
Compounds
What is the equation for finding the atomic mass
No. of protons + no. of neutrons = atomic mass
Finish the sentence: each element has a fixed position on the periodic table, they are arranged in order of increasing __ __.
Atomic number
What is the atomic number
How many protons in the element
What are valence electrons
Number of electrons in the outermost orbital
What is valency
The capacity of an item
