Duplicate of Atoms and Periodic Table Test Review

This particle is similar to the Helium nucleus.

You have a 100g sample that has a half life of 1 day.  How much do you have left after 3 days?

The elements to the left of the zigzag line on the periodic table are called

At room pressure and temperature, Fluorine is a _____.

An atom of carbon with 6 protons, 6 electrons, and 7 neutrons would have a mass number of

_____ have luster, conduct heat and electricity and are malleable.

Which of these elements is not a metaloid?

What is the half-life of carbon-14?

How would you describe most non-metals?

What is the smallest unit of matter that is still an element?

A row across the Period Table is called a...

Which of the following is true regarding nuclear energy?

What are valence electrons?

Hydrogen-1, hydrogen-2, and hydrogen-3 are all ____________ of hydrogen.

In _____ decay, Uranium 238 changes to Thorium 234.

Four Hydrogen protons combine to form Helium and energy is released in a ______ reaction.

Which particle starts nuclear fission?

If you add a proton to an atom, what happens?

The Alkaline Earth family has ___ valence electrons and are ________.

How many electrons are in a neutral atom of chlorine?

Each column of the periodic table is called a(n)

An atom of phosphorus has 15 neutrons.  What is its isotope name?

What varies in isotopes?

How many protons are in an atom of iron?

If an isotope of nitrogen, nitrogen-15, has 7 protons.  How many protons does nitrogen-18 have?

Most elements on the periodic table are __________ at STP

In radioactive decay, how much of a sample is left after 3 half-lives?

The most reactive metals are in Group ____.

____ are very reactive nonmetals that form salts.

The rows on the periodic table are called

Which element is a non-metal?

Which of these is most dangerous to humans?

What type of ion does potassium(K) form?

Periodic law states

What is the overall charge of an atom as it appears on the periodic table of elements?

Which element has the largest mass?

What type of decay has occurred when a helium nucleus is ejected? 

How may neutrons are in atom of calcium-41?

A large atom is hit with a neutron, and splits into two small atoms and neutrons. What is this?