Intro to Atoms

Protons have a ___ charge

• neutral
• negative
• positive
• square

Electrons have a ___ charge

• positive
• neutral
• negative
• strange

Neutrons are ____

• neutral
• positive
• negative
• oval

AMU stands for 

• atoms must unify
• atomic mass utility
• atomic mass unit
• a mini unicorn

Bohr's atomic model is said to resemble planets orbiting the sun or 

• seeds in a watermelon
• rings in a tree
• the pit of a cherry
• curls of smoke

The nucleus of an atom contains

• protons and electrons
• electrons and neutrons
• protons only
• neutrons and protons

Atoms having the same number of protons and electrons are said to have a _____ charge. 

• positive
• neutral
• negative
• super

The atomic number is the number of ____ in an atom. 

• neutrons
• protons
• protons and neutrons
• electrons

The atoms' identity is its' number of ....

• protons
• protons and neutrons
• neutrons
• electrons

Atoms of the same element with different numbers of neutrons are called ...

• isomers
• isotopes
• radioactive
• mutations