Neutrons
Neutrons have the same mass as _____________
Protons
What is the charge of a proton?
Positive
What is the charge of an electron?
Negative
The number equal to the number of protons + neutrons in an atom.
Mass number
What does the 14 represent in Carbon-14
Mass number
What is the charge of a neutron?
No charge
Protons and _____________ are found in the nucleus of an atom.
Neutrons
The elements to the right of the zig-zag line are called what?
non-metals
What do we call the columns of the periodic table?
Groups
Draw the Bohr model for Nitrogen.
7 protons, 7 neutrons, 7 electrons
2 rings
What is an isotope?
Same number of protons, different number of neutrons
If Hydrogen-1 has 1 proton, how many protons does Hydrogen-2 have?
1
The name of the area around the nucleus of an atom where its electrons are found.
Electron cloud
How many electrons can fit in the first energy level?
2 electrons
What parts of the atom does the Bohr model show?
The rings/energy levels and the electrons
If you add neutrons to an atom what are you changing about the atom?
Increasing the mass
The number equal to the number of protons in an atom.
Atomic number
What do we call the electrons found in the outer shell/orbital?
Valence electrons
What do we call the rows of the periodic table?
Periods
What parts of the atom does the Lewis Dot structure show?
Valence electrons
Elements are arranged in order of ____________
If you change the number of protons in an atom what can you also say has happened? Give me 2 things
The mass changes, atomic number changes, the element changes
How many valence electrons do elements in group 18 have
8 (2 for helium)
How many orbitals/rings do the elements in the 3rd row have?
3 rings
What is the majority of an atom made of?
Empty space.