protons and netrons Flashcards
Are protons positive or negative
positive +1
Are neutrons positive or negative
no charge 0
are electrons positive or negative
negative -1
what is the mass of protons, neutrons and electrons
protons- 1
neutrons- 1
electrons- 0
where is the location of the protons
nucleus
where is the locations of the neutrons
nucleus
where is the location of the electrons
orbitals
The atomic number of an atom is what
The atomic number of an atom is the number of protons
The mass of an atom is the number of what
The mass number of an atom is the number of protons and neutrons added together
Explain why an atom has no overall charge using the electrical charges of sub- atomic particles in your explanation
In the nuclear model of the atom the negative electrons and positive protons is equal so they balance each other and cancel each other out
How do you find the atoms in a molecule count of each atom
if there is no number indicated after an element there is 1 of it. for example carbon dioxide
where are alkali metals stored
Alkali metals are stored in oil to prevent reaction with oxygen/water
What are the things you would see after adding potassium with water/oxygen with universal indicator in it
- floats
- fizzes/ produces gas / bubbles
- Universal indicator changes colour green to purple
- lilac flame ( when hydrogen catches fire)
- moves around on surface
what is the word equation
potassium + water = potassium hydroxide and hydrogen
The word/symbol equation for oxidation of a metal always follows what
a pattern
