Topic 1: Atoms and the Periodic Table

The smallest particle that still be considered and element.

An _______is an atom or group of atoms that has either a positive or negative charge

Ability to be drawn into thin strands.

Atoms of the same element with different number of neutrons.

This is equal to the number of protons and neutrons in the nucleus of an atom.

This scientist was responsible for identifying a small dense positively charged nucleus.

This type of bond is made by sharing electrons.

This type of bond is formed from gaining or losing electrons.

Bitter Taste, slippery texture, turns red litmus paper blue

A substance that can conduct electrical current under certain conditions but not under others.

Ordered from left to right by increasing atomic number.

The number of electrons that reside in the outer energy level of an atom is called the ______.

The ease and speed with which an element combines or reacts with another element

This is a compound that releases hydroxide Ions within a solution

A compound that releases hydrogen Ions within a solution is a

Ability to be hammered into thin sheets or roles

This is a compound that changes color when it comes into contact with an acid?

Conductivity is a property of

Ordered from lower reactivity to higher reactivity.

Metals, Metalloids, Nonmetals indicate a

This is a sub-atomic particle with no charge.

Sour taste, corrosive compound that reacts with metals and carbonates

The ability to reflect light: Shiny

A chart showing all the elements arranged according to patterns and properties

This scientist was the first to publish four ideas about atomic theory.

The number of protons in the nucleus of an atom is the:

This a a group of atoms that are joined together by covalent bonds

This is the lightest sub-atomic particle with a negative charge

A group of non-reactive gases

High Melting points and excellent conductivity are examples of

One or two letter abbreviation for an element

A reaction that pairs and acid and a base?

Two of more elements chemically combined in a specific ratio.

A family of soft metals that can be very reactive.

This scientist was responsible for discovering the electron

Valence Electrons are found in the: