Science Toolkit
This is the basic unit for mass
what is kilogram
All forms of matter is composed of __________
atoms
This number tell you the number of protons in the element
atomic number
These are the three types of radiation that can result from radioactive decay
alpha, beta, gamma
This is name of the scientist that is credited for the creation of the first periodic table
Dimitri Mendeleev
This is the study of matter and the changes it undergoes
What is chemistry
If a solution has 2 distinct phases that can be separated by physical mean then the solution is considered to be this type of solution
heterogeneous
This subatomic particle was discovered by JJ Thomason
electron
This particle is the same size and charge of an electron
beta
This family is most stable family on the periodic table
noble gas
the metric system is based on the power of what number
what is 10?
Boiling point, melting point and hardness are examples of this type of property
physical
An element that has same number of protons but different number of neutrons is called this
Isotope
This type of nuclear reaction occurs in the stars to create heat and light
fusion
As you move from left to right across the periodic table, the atomic radius tends to
decrease
This is the basic unit for density
g/ml or g/cm^3
The rusting of nail is considered to be this kind of change
chemical
Protons and neutrons are composed of what even more elementary particle
quark
This type of nuclear reaction occurs in nuclear power plants and nuclear bombs
fission
This family is most reactive family of the metals. They usually have only one valence electron and are explosive in water
alkali metals
This branch of chemistry contains the study of carbon or those molecules that contain carbon
organic chemistry
A homogenous mixture can be also called this
solution
This name is given to an atom that has an unequal number of protons to electrons
ion
This is the name of the female scientist that discovered radiation. Her lab is still radioactive today
Marie Curie
Each group across the periodic table has the same number of