Element
What is the symbol of this element, gold?
Au
________ is a substance that is made up of only one kind of particle and has a fixed or definite set of properties.
Pure substance
They have low penetrating power and can be blocked by a sheet of paper. What are they?
Alpha radiation
________ is a homogenous mixture where one substance dissolves completely in the other.
Solution
It is a light metal used in making planes. What is it?
Aluminum (Al)
What is the symbol of this element, tin?
Sn
How many elements are in the periodic table?
118
In an electric field, they are not deflected. What are they?
Gamma radiation
Salad is an example of what mixture?
Heterogenous
It is added to vegetable oil to prevent rancidity. What is it?
Hydrogen (H)
What is the symbol of this element, copper?
Cu
It has high densities, melting points, and boiling points. What is it?
Metals
It is used to study the uptake of fertilizers. What is it?
Potassium-32 (K-32)
What is the size of the particle of colloid?
1-100 nanometers
It is used in making fertilizers. What is it?
Potassium (K)
What is the symbol of this element, iron?
Fe
They are all dull and brittle. What are they?
Nonmetals
It emits two types of particles: negative or positive. What is it?
Beta radiations
What is the particle size of Suspension?
greater than 1000 nanometers
_____ is used in making pencils and jewelry.
Carbon (C)
What is the symbol of this element, lead?
Pb
_____Used in the glass industry.
Germanium (Ge)
What are the radioactive elements?
alpha, beta, gamma radiations
______ is a heterogenous mixture in which one substance with tiny particles is suspended throufghout another substance.
Colloid
_____ is used in the bleaching industry.
Chlorine (Cl)