http://phet.colorado.edu/en/simulation/build-an-atom
We were asked to go to this website and do the simulation. After, we had to answer these questions:
1)What happens when you add a proton?
When you add the first proton, the mass number changes to 1, the charge becomes +1 and the element formed is Hydrogen. It is stable.
2)What does it mean when an atom is stable? What does it mean when an atom is unstable?
I think that an atom is stable when it has the same number of protons and neutrons in the nucleus. The atom is unstable when the number of protons is not equal to the number of neutrons.
3)How do you make an atom stable? What do you need to do?
To make an atom stable, you need to add proton(s) or neutron(s).
4)What is the valence electron pattern as you move across the periodic table?
The valence electron is the number of electrons on the outer shell of a atom. A valent electron is added as you move along a line in the periodic table. But when you change line, it goes back to one.
5)What happens to the atom when there is more protons, more neutrons, or more electrons?
When protons, neutrons or electrons are added, the atom becomes a different element.
6)What's the difference between a positive and a negative ion?
A positive ion is an atom that has given or lost a electron to another atom. A negative ion is an atom that has taken a electron from another atom.
7)How do you make a neutral ion (charge of 0)?
An ion cannot be neutral. It can be either positive or negative. If it was neutral, it would be an atom.
We were asked to go to this website and do the simulation. After, we had to answer these questions:
1)What happens when you add a proton?
When you add the first proton, the mass number changes to 1, the charge becomes +1 and the element formed is Hydrogen. It is stable.
2)What does it mean when an atom is stable? What does it mean when an atom is unstable?
I think that an atom is stable when it has the same number of protons and neutrons in the nucleus. The atom is unstable when the number of protons is not equal to the number of neutrons.
3)How do you make an atom stable? What do you need to do?
To make an atom stable, you need to add proton(s) or neutron(s).
4)What is the valence electron pattern as you move across the periodic table?
The valence electron is the number of electrons on the outer shell of a atom. A valent electron is added as you move along a line in the periodic table. But when you change line, it goes back to one.
5)What happens to the atom when there is more protons, more neutrons, or more electrons?
When protons, neutrons or electrons are added, the atom becomes a different element.
6)What's the difference between a positive and a negative ion?
A positive ion is an atom that has given or lost a electron to another atom. A negative ion is an atom that has taken a electron from another atom.
7)How do you make a neutral ion (charge of 0)?
An ion cannot be neutral. It can be either positive or negative. If it was neutral, it would be an atom.
It seems that you understood the simulation quite well and were able to analyze the information you gained from working with the various functions on the simulator. When adding a proton, it creates a new element. Good job with this.
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