What is hydrogen?
This is the lightest element in the universe.
What charge does a proton have?
Has a positive charge.
What is a covalent bond?
This type of bond involves the shaaeing of electrons.
What is error?
The difference between experimental value accepted value.
What is gas?
A form of matter that takes both the shape and volume of its container.
What are families?
These columns on the periodic table are also known as groups.
What is the mass number?
The total number of protons and neutrons in an atoms nucleus.
What is a cation?
In ionic bonding, this type of ion is positivey charged.
What is a milli?
1/1,000
What is a heterogeneous mixture?
A mixture in which the composition is not uniform thoughout.
What are periods?
This is the name of the horizontal rows on the periodic table.
What is the electron cloud?
The nucleus where electrons are most likely to be found.
What is metallic bonding?
This term describes the attraction between metal actions and delocalized electrons.
What is a meter (m)?
The basic unit of length.
What is the law of conservation of mass?
Any physical change/Chemical reaction mass is conserved/mass is neither created nor destroyed.
What are halogens and name 2 elements?
This group of elements is highly reactive and includes fluorine and chlorine.
What is a neutron?
This particle is neutral and found in the nucleus of an atom.
What are metals and nonmentals?
An ionic bond forms between these two types of elements.
What is mass divided by volume?
The formula used to calculate the density of a substance.
What is a phase?
Any (solution) part of a sample with uniform composition/properties.
Who is Dmitri Mendeleev?
The scientist with creating the first periodic table.
What are isotopes?
Atoms of the same element with different numbers of neutrons are called this.
What is a polar covalent bond?
A covalent bond in which electrons are not shared equally is called this.
What is a balance
This scientific tool is used to measure the mass of an object with high precision
What is Distillation?
a homogenous mixture of water and substance that are dissolved in the water.