Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
34 Cards in this Set
- Front
- Back
|
Trace elements
|
elements that an organism only need minute quantities of and only in certain species
|
|
|
Neurons
|
electrically neutral
|
|
|
Protons
|
one positive charge
|
|
|
Electrons
|
one negative charge
|
|
|
Atomic nucleus
|
dense core of neutrons, protons and electrons at the center of an atoms
|
|
|
What makes electrons move?
|
the attraction between opposite charges
|
|
|
What two subatomic particles are almost identical in mass?
|
protons and neutrons
|
|
|
Dalton
|
atomic mass unit
|
|
|
Which two subatomic particles balance each other with equal presence?
|
protons and electrons
|
|
|
Stable isotope
|
does not tend to lose particles
|
|
|
Radioactive isotope
|
nucleus decays spontaneously and gives off particles and energy
|
|
|
What kind of subatomic particles interact in chemical reactions?
|
electrons
|
|
|
Potential energy
|
the energy that matter stores because of its position or location
|
|
|
Energy level/electron shell
|
different states of potential energy that electrons in an atom have
|
|
|
Valence electrons
|
the outer electrons in a shell
|
|
|
What makes an atom chemically unreactive?
|
having a completed valance
|
|
|
Orbital
|
the 3 dimensional space where an election is found 90% of the time. No more than 2 electrons to each
|
|
|
What particles are involved when atoms interact to complete their valence shells?
|
the unpaired electrons
|
|
|
Chemical bond
|
attractions that cause atoms to stay close together
|
|
|
Molecule
|
two or more atoms held together by covalent bonds
|
|
|
Structural formula
|
notation that represents both atoms and bonding (H-----H)
|
|
|
Molecular formula
|
indicates what atoms a molecule consists of
|
|
|
Radioactive isotope
|
nucleus decays spontaneously and gives off particles and energy
|
|
|
What kind of subatomic particles interact in chemical reactions?
|
electrons
|
|
|
Potential energy
|
the energy that matter stores because of its position or location
|
|
|
Energy level/electron shell
|
different states of potential energy that electrons in an atom have
|
|
|
Valence electrons
|
the outer electrons in a shell
|
|
|
What makes an atom chemically unreactive?
|
having a completed valance
|
|
|
Orbital
|
the 3 dimensional space where an election is found 90% of the time. No more than 2 electrons to each
|
|
|
What particles are involved when atoms interact to complete their valence shells?
|
the unpaired electrons
|
|
|
Chemical bond
|
attractions that cause atoms to stay close together
|
|
|
Molecule
|
two or more atoms held together by covalent bonds
|
|
|
Structural formula
|
notation that represents both atoms and bonding (H-----H)
|
|
|
Molecular formula
|
indicates what atoms a molecule consists of
|
