Terms
The Periodic Table
Electrons
Bonding
More Chemistry
100

The study of life and living things. 

What is biology?

100

An atom with the same number of protons but a different number of neutrons 

What is an isotope 

100

Electrons shells are most stable when 

They are full 

100

The partial positive charge on water is on 

What is hydrogen 

100

The starting molecules of a reactions 

What are reactants 

200

Living things made of matter 

What are organisms 

200

The essential elements of life 

What are CHON 

200

The order of electron shell numbers is 

What is 2,8,8 

200

The partial negative on water is on? 

What is oxygen 

200

The end of a reaction

What are products 

300

The smallest unit of matter that cannot be broken down while maintaining its characteristics

What are elements 

300

Trace elements 

What are calcium, phosphorous, potassium, sulfur, sodium, chlorine, magnesium

300

This determines the reactivity of elements 

What is the number of of valence electrons 

300

The partial negative charge will always fall on which molecule 

What is the more electronegative molecule 

300

Geckos climb with? 

What are Van der Waals forces? 

400

The tendency of an atom or functional group to attract electrons to itself 

What is electronegativity 

400

This has almost no mass 

What is an electron 

400

A bond that shares electrons 

What is covalent 

400

These bonds form salts 

What are ionic 

400

These elements are usually electronegative in cells 

What are oxygen and nitrogen? 

500

The amount of energy needed to remove an electron from a molecule 

Ionization energy 
500

___ Is the number of protons in an atom, ___ is the average mass of the protons+neutrons 

What is atomic number and atomic mass 

500

A bond that is a total loss/gain of an electron

Ionic 

500

These bonds are very weak 

What are Van der Waals 

500

These bond nucleic bases in DNA 

What are hydrogen bonds 

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