Atoms and the Periodic Table

A 3-D area around the nucleus where electrons are found.

Which group of the periodic table has a complete set of valence electrons?

An atom that has lost or gained electrons to become + or - charged.

The British chemist that developed the first periodic table.

The weighted average of the masses of all the naturally occurring isotopes of an element.

A group of atoms held together by chemical bonds in which the atoms share valence electrons.

Good electrical conductor.

The neutral subatomic particles found in the nucleus of an atom.

How many total electrons does this element have?

How many neutrons does this element have?

He stated that electrons orbit the nucleus in fixed orbits.

What is the mass number of an atom that has 6 protons, 7 neutrons and 6 electrons?

What do the elements Mg, Ca, and Sr have in common?

Groups 3-12 are called the _ metals.

An arrangement of the elements in order of their atomic numbers so their properties line up.

Whose atomic model is shown?

British scientist that determined the numbers of protons in each element's atoms.

The ability to dissolve in a liquid.

Elements in group 18 are called _

The number of protons in the nucleus of an atom.

He discovered electrons.

 A small, dense positively charged center of an atom.

Which of the following atoms might accept the electron from a sodium atom?

What is happening in the diagram?

This changes the identity of a substance by rearranging the atoms bonded together.

Elements found ON the zigzag line.

Elements found to the left of the zigzag line.

What are the building blocks of atoms called?

Nitrogen has 1 more valence electron than carbon has.  What can you tell about nitrogen?

The total number of protons and neutrons in an atom's nucleus.

Good insulators.

Which pair of elements are in the same group?

The number of outermost electrons can be determined by the _ number.

Whose atomic model is shown?

The negatively charged subatomic  particle found outside the nucleus.

An interaction that holds atoms or ions together.

The positively charged subatomic particle found in the nucleus.

Whose atomic model is shown?

A repeating, 3-D pattern of bonded ions.

The smallest particle into which an element can be divided and still be the same element.

He discovered neutrons in the nucleus of atoms.

In a neutral atom, the number of electrons __ the number of protons.

 A regular, repeating pattern.

Semiconductors.

A group of atoms that are held together by covalent chemical bonds.

The ability to be made into wires.

How many protons does this element have?

When carbon reacts with oxygen to form carbon dioxide _.

Elements found to the right of the zigzag line.

A horizontal row of the periodic table.

Greek philosopher that developed the idea of atoms.

A bond formed by the attraction between + charged metal ions and the electrons around them.

The ability to be shaped into different shapes.

Elements that are excellent conductors of heat and electricity.

Elements in group 17 are called _

Group 2 elements are called the _ metals.

Whose atomic model is shown?

Low melting points.

A(n) __ bond forms when electrons are transferred from one atom to another.

He discovered the nucleus of atoms.

Elements that are poor conductors of heat and electricity.

Elements numbered 58-71; top row of the pulled out section.

A chemical bond that forms between two or more oppositely charged ions.

Group 1 elements are called the _ metals (except hydrogen)

How many valence electrons does Be have?

Atoms of the same element that have different numbers of neutrons.

The free moving electrons that hold metal ions together in a  metallic bond.

Which of the following is NOT made up of atoms?

Substances that cannot be separated or broken down into simpler substances by chemical means.

The two rows pulled out of the main table are called _.

Elements numbered 90-103; bottom row of the pulled out section.

An abbreviation for an element's name.