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Presentation transcript:

Atomic Structure BondingWaterpHGrab Bag

This subatomic particle determines chemical properties

What is the electron?

This subatomic particle controls an elements physical properties

What is the proton?

This is the name for an element that has added or lost a neutron.

What is an isotope?

The charge of an atom that has 114 protons and 117 electrons.

What is -3?

The percent of mass located in the nucleus of an atom

What is >99%

A pure substance, formed by the chemical combination of two or more elements in definite proportions

What is a compound?

The type of bond pictured above (electrons are shared)

What are covalent bonds?

The type of bond depicted in this cartoon

What are ionic bonds?

The names of three chemical compounds, and their chemical formulae

_____?

The type of attraction (relatively weak) between oppositely charged molecules

What are van der Waals forces?

This is the molecular property that makes water have so many special qualities

What is its polarity?

Because of their oppositely charged ends, water molecules stick to each other due to this type of bond

What is a hydrogen bond?

The phenomenon that occurs when molecules of different substances attract to each other

What is adhesion?

Demo Daily Double The effect that makes this happen

What is capillary action?

In Kool-aid, this is the solvent

What is the water?

The pH of a “neutral” substance

What is pH 7?

The type of substance that contain high concentrations of H+ ions

What are acids?

The approximate pH of bleach (plus or minus 1)

What is 13?

A weak acid or base that prevents sharp changes in pH

What are buffers?

The formula for the breakdown of water into its two ion constituents

What is

The chemical symbol for Helium

What is “He”?

The most abundant element in the universe, by far

What is hydrogen?

The last element that can be forged in a star before it blows up in a nova

What is iron?

The chemical symbol of gold

What is Au?

2 of the 4 groups of organic compounds in all living things

What are carbohydrates, lipids, nucleic acids, and proteins?