Atoms

What is the symbol for atomic mass?

The sum of the number of protons and neutrons inside the nucleus is called the __________.

How many protons are in the element Polonium (Po)?

Which of the following is an example of a heterogeneous mixture?

The chemical symbol for Strontium is?

How many neutrons does Rb-85 contain?

Nucleons include:

If an atom has 18 protons it will also always have _______.

Which type of decay can be avoided by lead?

Which type of decay can be avoided by a piece of paper?

What is an example of a nuclear reactor?

Which subatomic particles have approximately the same size and mass as each other?

The element with the most stable nuclei is ______.

The first letter of a chemical symbol is written as a ______ letter.

Radioactivity results when the nucleus is ______.

Which type of decay can be avoided by aluminum?

Because atoms have the same number of protons and electrons, atoms are ____.

Strong forces act at _____ distances.

What is the term used for the electrons in the outermost shell or energy level?

_______ is responsible for the atomic theory.

Nuclear binding energy is the energy required to _______ a nucleus.

What is the most dangerous type of decay?

What is the correct ordering of these small parts of matter, from the smallest to the largest?

How many electrons are in the element Polonium (Po)?

An atom, as shown on the periodic table, is neutral because it contains equal numbers of _____.

Which of the following is an example of a homogeneous mixture?

Valence electrons are located _________.

Half life is the time required for half of the unstable ____ to decay.

Elements on the modern periodic table are arranged according to their _________.

The atomic number of an element is the same as the number of ____ an element.

What are 2 fundamental forces of nature?

________ is the weakest force.

What is the symbol for atomic number?

A single neutron has what type of charge?

The subatomic particle that moves around the nucleus is.....

Isotopes have the/a _____ number of protons and different number of _____.

Which listing below shows the proper charges of the subatomic particles?

Nuclear fission is when _____ nuclei break apart to form _____ nuclei.

Which subatomic particles are located inside the nucelus of an atom?

The number of protons an atom contains is identified by the ____ ____ on the periodic table.