Parts on atom
What subatomic, negative particles travel in orbitals?
Electrons
What elements are on the left side if the PTE?
Metals
Atoms that are exactly the same are all the same what?
Element
What allows compact substances to sink below lighter ones?
Density
Dihydrogen monoxide is a molecule with how many atoms total?
3
Which 2 subatomic particles make up the atomic nucleus?
Neutrons and Protons
What elements are on the right side of the PTE?
Nonmetals
When atoms are chemically bonded together, they make a what?
Compound
The attraction between certain metals is called what?
Magnetism
If an atom has 2 electrons, then what element is it?
Helium
Most of an atom is made of what?
Empty space
What elements tend to not make bonds
Group 18 (Noble gases)
Mixtures that look the same throughout are called
homogeneous
What are ways to increase solubility?
increase temperature, increase surface area, stir mixture
If an element has a mass of 7, including 3 protons, how many neutrons does it have?
4 neutrons
What information on the PTE tells you the number of protons?
Atomic Number
If bonds are sharing valence electrons, it is called what?
Covalent
What method is used to separate larger particles from smaller ones?
Filtration (straining/sifting)
If a solid has a complex, rigid cube-like shape, it would be called what?
Crystalline
What is the smallest unit of matter?
atom
What number tells on the PTE tells you the size of the atomic nucleus?
Atomic mass
Similar with similar properties are organized on the PTE into what?
Groups
What term means to be able to dissolve in water?
Solubility
If 10 g of an acid mix with 15 g of a base, it will make how many grams of products?
25 g
When 2 different elements make a compound, its chemical properties of the new molecule will be what?
different