Chemical Basis for Life Flashcards
What is an element?
an element is matter that cannot be divided by ordinary chemical processes into another substance
what is a chemical symbol?
a chemical symbol uses a letter or letters to refer to elements. Chemical symbols are derived from the element’s name in English, Latin or Greek
Name the 3 subatomic particles.
Proton, neutron, and electron
What is the electrical charge of each particle?
Protons have a positive charge, neutrons have no charge, and electrons have a negative charge
Which particles are in the nucleus of an atom?
Protons and neutrons
How many electron shells would an atom with 4 electrons have?
2
What is a Molecule?
Atoms joined together by chemical bonds.
How does an ionic bond differ from a covalent bond?
A covalent bond is formed when atoms share electrons, while an Ionic bond is formed by the transfer of electrons.
