Atomic Structure & Symbols Flashcards
identifying parts of an atom, atom charges, atomic mass, atom location, ions (18 cards)
what is the charge of an electron?
negative
electrons are negatively charged
what is the charge of a proton?
positive
protons are positively charged
what is the charge of a neutron?
neutral (0)
neutrons have no charge
how many electrons are allowed in the first shell?
2
formula = 2 x n ^2 (n=energy level)
where is the neutron located?
inside the nucleus
where is the electron located?
outside of the nucleus
surrounding it
where is the proton located?
inside the nucleus, with the neutrons
mass of an electron?
9.1093837 × 10⁻³¹ kg
mass of a proton?
1.6726 × 10⁻²⁷ kg
mass of a neutron?
1.6749 × 10⁻²⁷ kg
Describe the structure of a carbon atom
A carbon atom has a nucleus containing 6 protons and 6 neutrons, surrounded by 6 electrons orbiting in two energy levels.
The first shell holds 2 electrons, and the second shell holds 4 electron
what are ions?
ions are atom with a charge
when/how are ions formed?
ions are formed when atoms lose or gain electrons
what is a positively charged atom called?
a cation
what are negatively charged ions called?
an anion
formula for mass number
protons + neutrons
mass number is at the top right of the element
formula for atomic number
number of protons
atomic number is the number of the element in the periodic table
what is ‘atomic net charge’?
how protons and electrons balance out
https://www.youtube.com/watch?v=f3cmIZSCIEI
