science 5 Flashcards
(32 cards)
whats matter
Matter is anything that occupies space and has mass.
what does a solid have
A solid has a definite shape and volume.
what does liquid have
A liquid has a definite volume but no definite shape
does gas have volume
A gas has neither a definite volume or shape.
what does rigid mean
unable to bend or be forced out of shape; not flexible
whats physical changes
physical changes is the material is the same but it has energy added or removed to change the state of the material
what is H
Hydrogen
what is c
Carbon
what is o
oxygen
what is n
Nitrogen
whats a molecule
A molecule is a single group of 2 or more atoms bonded
what are elements
Elements are the different types of atoms that exist
whats in the center of an atom
Centre of the atom holds the Protons and Neutrons
what neutrons charged by
Neutrally charged particles inside the nucleus
what electrons are charged by ……..
Negatively charged particles that surround the nucleus
how many electrons and protons in an element
There is the same number of electrons as protons in an element
what size is a electron
Electrons are extremely tiny and have no mass
whats in an atom
Atoms have protons and neutrons in a nucleus surrounded by very tiny electrons
are protons postive or negitive
Protons are positive
are electrons negitive or positive
electrons are negative
how are electron shells shown
Electron shells are show as circles around the nucleus of an atom
what are the three states of matter
gas Iiquid solid
what is data
data refers to known facts or pieces of information collected together for reference or analysis
whats a compound
compounds are made up of atoms of more than one element
