Atoms & Periodic Table Quiz Review

One of a class of elements having properties intermediate to metals and nonmetals.

An atom of the element ____________has an average atomic mass of about 16 amu

This is the weighted average of all of the isotopes of an element.

This is the highly reactive group 17 family of elements with 7 valence electrons.

Which statement is the BEST definition of an atom?

MOST elements on the periodic table are

Periodic table is set up based on the number of theses

These are the highly reactive elements located in Group 1 of the periodic table.

This is a type of element that has many valence electrons, not a conductor.

When can a scientific theory be changed?

A vertical columns of elements in the periodic table.

Not a hunch or an educated guess

This is a group of elements with few valence electrons that conducts heat and electricity.

Sometimes called an "educated guess"

A carbon-12 atom has 6 protons, 6 neutrons, and 6 electrons. How many protons does a carbon-14 atom have?

This is an element with full valence shell, very unreactive.

What is the number of protons in an atom of sodium?

Gives the identiy of the atom

The gold foil experiment showed the researchers that the atom is made mostly of

A _ predicts overall natural events in general terms, while a _ is a very specific prediction based on one circumstance.

This is a subatomic particle with a negative charge and very little mass.

These are the reactive elements located in Group 2 of the periodic table.

Can be supported or rejected

A description of natural events that has been proven to be true time after time, without exception.This describes

Responsible for bonding

A testable statment

In metals, lost during bonding

All of the statements are true about the arrangement of elements in the periodic table EXCEPT that the

This is a subatomic particle with a positive charge and a mass of 1 amu.

This is a subatomic particle with no charge and a mass of 1 amu.

This is a subatomic particle with a negative charge and very little mass.

Over 99% of the mass of an atom is located

The mass of the electron is

This is a group of protons and neutrons in the center of all atoms.

This is the basic building block of all matter.

A -Bohr's model, B -J. J. Thomson's model, C -Dalton's atomic theory,D-Rutherford's Place in chronological order

Can be modified

This is an atom that has lost or gained electrons.

These are the Group 3 and are dense metals with high boiling points.

The atoms in a sample of carbon must contain nuclei with the same number of

Describe the composition of the nucleus of an atom.

How many neutrons are in a typical Beryllium nucleus?

This is the number of protons.

An explanation of an observed phenomena

A horizontal row of elements in the periodic table.

Atoms of the same element with varying number of neutrons.

This is the first element in the periodic table, atomic number is one.

Slightly larger than a proton

This is a property of solid metals. Capable of being shaped or formed, by hammering or pressure.

Comes and goes in the thousands