Atoms and the Periodic Table

Every atom of the same element has the same atomic number.

What bond forms when atoms share one or more pair of electrons?

An ion is always a negatively charged particle.

Negatively charged particles.

What is a group of atoms held together by a chemical bond called?

Positively charged particles.

Metals _____ be reshaped without breaking.

The nucleus of an atom does not change when the atom undergoes a chemical reaction.

The nucleus contains neutrons and electrons.

What is the area around the nucleus?

______ are poor conductors of heat and electricity.

Electrons move in orbits in the same way planets orbit the sun.

Each vertical column (from top to bottom) of elements on the periodic table is called ______.

What is the name for the number of protons in the nucleus of an atom?

What type of bonds form between metal atoms when their outermost energy levels overlap?

_____ are elements that have some properties of metal and some properties of nonmetals.

______ are elements that are shiny and conduct heat and electricity well.

The _____ _____ is an abbreviation for the element's name.

All of an atom's electrons can interact with the electrons of other atoms to form bonds.

Atoms are rearranged during a chemical change when bonds break and form.

What is a force that brings oppositely charged ions together?

The atom is the previous question is reactive because its outermost energy level is not full.

A bohr model is the best choice to show how many atoms are rearranged in molecules.

What is a particle with a positive/negative charge that forms when an atom gain/loses electrons

Some atoms bonds by sharing electrons.

Ionic bonds usually form between a positively charged metal and a negatively charged _____ ion.

What is the name for the total number of protons and neutrons in an atom's nucleus?

Metals are good conductors of electric current.

In general, covalent compounds have ____ boiling points.

You can use a light microscope to see the atoms in fabric.

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

Horizontal rows (from left to right) of elements on the periodic table are called a _____.

Metallic bonds are the strongest type of bond.

According to current atomic theory, electrons are in fixed locations.

What is an interaction that holds the atoms or ions together?

What are electrons found in the outermost energy level of an atom?

An atom does not react with other atoms if it has the same number of protons and electrons.

Uncharged particles.

The arrangement of elements into a pattern is called _____ _____.

A small, dense center that has a positive charge and is surrounded by moving electrons.