combustion, heat, and energy
What is exothermic?
release of heat
What is a atom?
An atom is a particle that consists of a nucleus of protons and generally neutrons
Whats a example of periodic trends?
Periodic trends are patterns in elements on the periodic table that trends onto electron negativity, ionization energy, electron affinity, atomic radius, and metallic character.
The Lewis dot structures show..
how the electrons are arranged around individual atoms in a molecule.
what is the octet rule?
the tendency of atoms to prefer to have eight electrons in the valence shell
What is endothermic?
absorption of heat
What is the atomic number?
the number of protons in the nucleus of an atom
what are valence electrons?
valence electrons are electrons in the outermost shell of an atom, and that can participate in the formation of a chemical bond
What is a cation?
ions that are positively charged
ionic compounds are...
compounds made up of ions that form charged particles when an atom or group of atoms gains or loses electrons.
What is conduction?
when heat and energy is transmitted by substance
What is a isotope?
Atoms with the same number of protons but different numbers of neutrons
The 's' rows contain?
Alkali metals, and Alkali earth metals
what is a anion?
ions that are negatively charged
What is a Poly atomic Ion
A polyatomic ion is a covalent bonded set of two or more atoms, or of a metal complex
What is convection?
Heat being transferred by liquids and gas.
What is a proton?
a subatomic particle with a positive electrical charge.
The 'd' rows are...
Transition metals!
Define covalent compounds?
a chemical bond that involves the sharing of electrons to form electron pairs between atoms.
Electron configuration is....
electrons that are located around the nucleus of an atom
Difference between open and closed system?
An open system is one in which energy can be transferred between the system and its surroundings. A closed system is one that cannot transfer energy to its surroundings.
A negatively charged subatomic particle that can be either bound to an atom or free
The one 's' block that's segregated from the 's' rows is called?
Helium!
solubility is being able to...
To be able to dissolve in water
why are Parentheses in Naming Transition Metals used
If a metal can form cations with more than one charge, the charge is indicated by roman numerals in parentheses following the name of the metal.