elements
what is the element number 7
what is nitrogon
Are two atoms of the same element identical
what is Nuclear reactions do
What particles are found in the nucleus of an atom?
what are protons and neutrons
atoms of an element that have different numbers of protons
Different elements have different atomic numbers;
How long can atoms last
this number is 5,730 years.
what is the symbol for Oxygen
what is O
Do atoms ever actually touch each other
If "touching" is taken to mean that two atoms influence each other,
Are there nuclear reactions going on in our bodies
Nuclear reactions do indeed occur in the human body, but the body does not use them
Atoms are made up of what?
subatomic particles
How many atoms of Hydrogen are in this compound
what is 2
Who was Democritus?
Democritus, known in antiquity as the 'laughing philosopher' because of his emphasis on the value of 'cheerfulness
How do you THINK this compound structure of alcohol would be written?
CH3 CH 2Ho
Which scientist developed the atomic theory?
who is John Dalton
Which of the following are subatomic particles
protons , neutrons , electrons
How many atoms are in the element Carbon in this compound?
what is 3
the symbol for Hydrogen
what is H
How many elements are present in this compound?
Mg2 As3 COHNi2
what is 6
He developed the planetary model of the atom.
who is Bohr
Which subatomic particle as no charge, also known as a neutral charge?
neutron
How many elements are present in this compound?
what is 6
what is the the symbol for the number 110
what is Darmstadtium
Does an atom have a color
atoms (as opposed to molecules) do not have colors
Subatomic particles with a negative charge
Electrons
What is the center of an atom called?
The nucleus
Scientist whose atom model looked like a chocolate chip cookie.
who is Thomson