elements/periodic table
how do you determine how many valance electrons are in a element
be found from its column on the periodic table
what is an ecosystem
a biological community of interacting organisms and their physical environment.
what is the third law of therodynamics
thermodynamics states that the entropy of a system approaches a constant value as the temperature approaches absolute zero.
how is the periodic table organized
Elements are arranged from left to right and top to bottom in order of increasing atomic number. Order generally coincides with increasing atomic mass
ecosystems are made up of ?
biotic and abiotic components. There must be enough producers to support the consumers
what is the second law
second law states that the acceleration of an object is proportional to the force acting on it, and inversely proportional to its mass.
what is the properties of neon on the periodic table
Neon is a chemical element with the symbol Ne and atomic number 10. It is a noble gas. Neon is a colorless, odorless, inert monatomic gas under standard conditions,
what is a predator
an animal that naturally preys on others
what is the first law of conservation of energy
Thermodynamics states that heat is a form of energy, and thermodynamic processes are therefore subject to the principle of conservation of energy.
add up the mass of protons and neutrons
how many ecosystems are there
forest, tropical rain forests, deserts, grasslands, the taiga, the tundra, the chaparral and the ocean.
may be changed from one form to another. ... Thus, it's more appropriate to say mass-energy is conserved
what is The law of conservation of energy
what is the difference between a food web a food chain and a energy pyramid
A food chain is a series of events which one organism eats another and obtains energy. a food web is a over lapping food chain in an ecosystem. An energy pyramid is when an organism in an ecosystem eats, and obtains energy.
atoms can
not be destroyed nor created