Atoms And Periodic Table Flashcards
What are the columns in the periodic table called
Groups
What are the rows in the periodic table called
Periods
What happens to group 1 as u move down the group
The reactivity increases
What happens to to the group 7 elements as u move down the group
Reactivity decreases
What is group 7
Halogens
What is group 0/8
The Nobel gases
What is group 1
The alkali metals
What is the charge of a proton
Positive
What is the charge of a neutron
Neutral
What is the charge of electrons
Negative
What is the mass of a proton
1 a.m.u
What is the mass of a neutron
1a.m.u
What is the mass of an electron
0a.m.u
What is the atomic number equal to
The number of protons = number of electrons
Where are electrons found in the atom
In energy levels around the nucleus
Where are the protons and neutrons found in an atom
In the nucleus
What is the number at the top of nuclide notation
The mass number
What is the number at the bottom of the symbol in nuclide notation
The atomic number
What are isotopes
Atoms either the same atomic number but a different mass number
What causes isotopes to have different mass numbers
They have different numbers of reactants
What is the equation for relative atomic mass
RAM= (% abundance of isotope 1 x mass) + ( % abundance of isotope 2 x mass)
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