Elements/Atoms

The ________________ which are represented by a single uppercase letter, or represented by an uppercase letter followed by a lowercase letter. This tells you the types of elements in the compound.

• metals

• element symbols

• metalloids

• nonmetals

The ________________ which are numbers that are found on the lower ________________- hand side of each element symbol. This tells you the number of ________________ of this element in the molecule.

• subscripts, left, atoms

• subscripts, right, elements

• subscripts, right, properties

• subscripts, right, atoms

The positive particles of an atom are ___________.

• electrons

• protons

• neutrons

The center of an atom where its neutrons and protons are is called the _____________.

• nucleus

• electron cloud

• center

An atom is made up of protons, neutrons, and electrons.  Which is the smallest subatomic particle?

• Proton
• Neutron
• Electron
• Idontknowatron

In the modern periodic table elements are arranged by:

• atomic mass
• atomic number
• valence electrons
• number of isotopes

Which is an electron?

• A
• B
• C

The smallest part of any element. Made up of protons, neutrons and electrons.

• Atom

• AMU

• Ion

• Isotope

Identifies the number of protons in an atoms nucleus.

• Electron Cloud

• Atomic Theory

• Atomic Number

• Mass Number

The region inside an atom where electrons are likely to be found

• Proton

• Atom

• Electron Cloud

• Neutron