Chapter 4 - Atomic Structure

The ________ is the number of protons and neutrons.

__________ is the standard reference isotope.

The mass of a neutron is _________.

__________ said that atoms are indivisible and indestructible.

__________ are uncharged subatomic particles.

________ and _______ are equal in number in a neutral atom.

Which of the following is NOT true of the atomic theory?

The _________ is equal to the number of protons

In the _________, electrons are stuck in a lump of positive charge like raisins stuck in dough.

In shorthand notation of an element or its isotope, its ________ is written as a superscript.

An electron's mass is ________ the size of a proton.

Smaller, fundamental parts of atoms are ______.

Hydrogen-2 is also called

Theoretical physicists believe subatomic particles are made of

______ and _______ are found in the nucleus of an atom.

Which of the following is NOT a subatomic particle?

Atoms have a _________ charge.

An atom is made of mostly __________.

Isotopes of an element differ in their number of _______.

_____________ are positively charged subatomic particles.

The smallest particle of an element that retains its identity in a chemical reaction

A ______ is a glowing beam used by Thomson to discover electrons.

To find ave. atomic mass, one should multiply ___ and ___ of each isotope and add the products.

_________ are negatively charged subatomic particles.

_______ created the atomic theory by transforming Democritus' ideas through experimentation.

Relative abundance should be used as ______ when determining an element's weighted atomic mass.

The nucleus of an atom has a _______ charge.

One could use which of the following to view an atom?

Amu's are _____________.

What is the range of size for atomic radii?