Periodic table
How many families are there on the periodic table ?
18 Families
is this balanced ?
Be + S ---> BeS
Yes
What charge does a Proton have ?
A positive charge
is Rusting a chemical or physical change
Physical
is coo lade ( No ice ) a Homogeneous or a Heterogeneous mixture ?
Homogeneous
How many periods are on the periodic table ?
7 periods
Is this balanced ?
H2 + O2 ----> H2O
No
What charge does a Neutron have ?
a Neutral charge/ not positive or negative
Is an ice melting a physical or chemical reaction?
Physical
Is a chocolate chip cookie a Heterogeneous or a Homogeneous mixture ?
Heterogeneous
Where on the periodic table can you find the Metalloids ?
In between metals and non metals in a stair formation
What is an Ionic bond ?
Ionic bonds transfer electrons
Where does the Proton go in the atom ?
In the Nucleus
what two things is a chemical reaction ?
a chopping wood
b fireworks
c penny rusting
d water freezing
B and C
Mixtures have ______________and______________ ______________
Hetero and Homogeneous Mixtures
What are some characteristics of all metals ? at least 2-3
Shiny, Solid at room temperature, High density, Malleable, and Ductile
What is a covalent bond ?
a covalent bond shares electrons
Where does an electron go in an atom ?
In the electron cloud
A physical changes occur when the _____________ changes
Appearance
How do you make an element ?
you must have two or more of the same atom together
What is the elements initials ? Potassium, Gold, Sodium, and Fluorine
K, Au, Na, and F
Is a H2O an ionic or covalent bond ?
H2O is a covalent bond
protons and electrons will always have the same....?
Atomic number / or number could work too
Chemical changes occur when the atoms making up matter _________
Change
Is water an Element, Compound, or Homogeneous mixture ?
Water is a compound