Atomic Structure Flashcards
Atoms are the basic building blocks of ____
Matter
What are the 3 parts of the atom?
Proton
Neutron
Electron
Atoms are ____ in charge because they have the same number of ____, ____, ____
Neutral
Protons
Neutrons
Electrons
Protons have a ____ charge
Positive
Protons live in the ____ of the atom
Nucleus
The number of protons determines the type of _____ and the _____ ____
Element
Atomic Number
Neutrons have a _____ charge
Neutral
Neutrons live in the ____
Nucleus
All atoms except ____ have neutrons and protons in the nucleus
Hydrogen
Electrons have a ____ charge
Negative
Electrons sit in electrons shells or ____ ____
Energy Levels
The first electron shell in an atom can hold ____ electrons
Two
The second electron shell in an atom can hold ___ electrons
Eight
An element is a substance that cannot be ____ ___ into simpler substances by ___ means
Broken down
Chemical
An element is comprised of ____ that have the same ___ ____
AToms
ATomic number
EAch atom in an element has the same number of ____, ____ and ____
Protons
NEutrons
Electrons
Every element has a unique ___ ___
Atomic number
An elements atomic number indicates the number of ___ and ____ in the ____
PRotons
Nuetrons
Nucleus
Normal atoms are ____ in charge so also has the same number of ____
Neutral
Electrons
Many element names are very ____
Old
Many elements are based on other languages similar to ____ ___
Chemical symbols
_____ is named after kholoros, the Greek word for “Greenish yellow.”
Chlorine
New names are approved by an ____ ___
International Committee
Every element is ____ using a unique ____ of one or two letters
Abbreviated
Symbol
