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Which is the teacher's Manuel first spanish song ?
What determines which kind of atom we are looking at?
Number of protons
Does an element isotope has the same mass?
No, each isotope has a different mass.
What is a compound?
A substance made up of atoms of two or more elements.
Electrons have negative or positive charge?
Negative
Who is the one that made the spanish voice of Hércules?
Ricky Martin
How is it call the number of protons in an atom?
Atomic number
Which is the process and what is the name of an isotope that kicks subatomic particles to become more stable?
This are radioisotopes and this process is called radioactive decay.
What is the difference between a molecule and compound?
A molecule is a group of atoms of two elements and a compound is a substance of atoms of two or more elements.
What is a cation?
An ion with positive charge that comes from an electropositive element.
What does this means in spanish?
"Nous n'avons jamais vraiment touché á quoi que ce soit"
"Realmente nunca tocamos nada"
What determines an element mass number?
Mass number= Protons+Neutrons
After a half life (5,730 years) , carbon-14 was converted to nitrogen-14. Why?
Because radioactive decay can cause a change in the number of protons in the nucleus that causes the change of the identity of the atom.
Which substance is made up of two or more atoms?
Molecules
What does a neutral atom contains?
Same number of protons and electrons.
Who invented TikTok?
Zhang Yiming
The atomic mass is typically expressed in...
Atomic mass units/ amu
Mention an isotope of carbon.
Carbon-6 Carbon- 11 Carbon-15
Carbon-8 Carbon-12 Carbon-16
Carbon-9 Carbon-13 Carbon- 17
Carbon-10 Carbon-14 Carbon-18
Carbon-19 Carbon-20 Carbon-21
Carbon-22
If salt has an atom of sodium and one of chlorine, What is salt?
A compound
ions
Which is my middle name?
I don't have :)
What are chemical symbols?
A one or two letter code for each element.
What happens when an isotope reaches his half-life time?
Half of the material will decay into a relatively stable product.
What is water?
A molecule compound.
How do I know if an element has positive, negative or neutral charge?
When you are missing an electron or two, you have a positive charge. When you have an extra electron or two, you have a negative charge. When the number of electrons is equal to the atomic number, you have a neutral charge.