Matter Flashcards
What is a pure element?
A pure element is a substance that consists of only one type of atom.
What are atoms?
Atoms are the basic units of matter that make up elements.
What is the charge of a nucleus?
The nucleus has a positive charge.
What is the charge of an atom?
An atom has a neutral charge.
What do elements do in chemical reactions?
Elements can combine chemically to form substances.
What are mixtures?
Mixtures are combinations of two or more substances that retain their individual properties.
What is the role of neutrons in an atom?
Neutrons are neutral particles found in the nucleus of an atom.
What is the significance of chemical reactions?
Chemical reactions involve the rearrangement of atoms to form new substances.
What does diatomic mean?
A pair of atoms chemically bonded together.
What does monatomic mean?
Individual atoms.
What are ions?
Positively or negatively charged particles.
What are cations?
Positive ions.
What are anions?
Negative ions.
What is ionic lattice?
The compound formed (array of cations and anions).
