Vocab
an atom that gains or loses an electron and has a net charge.
What is an ion
A substance that cannot be broken down into simpler substances.
What is an element?
Matter (can or cannot) be created or destroyed.
What is cannot?
What type of bond do metals experience?
What is a metallic bond?
This type of matter has a a crystalline structure in which the particles are arranged in regular geometric patterns.
What is a solid?
The spontaneous process through which unstable nuclei emit radiation.
What is radioactive decay?
the smallest particle of matter having all that element’s characteristics.
What is an atom?
The nucleus of an atom is made up of...
What is protons and neutrons?
Na+Cl- is an example of what kind of bond?
What is an ionic bond?
change of state from a liquid to a gas, involving thermal energy
What is evaporation?
Anything that has volume and mass.
What is matter?
The number of protons in an atom's nucleus is...
What is the atomic number?
the average of the mass numbers of the isotopes of an element.
Tomatoes have a pH of 4. They are considered to be...
What is acidic?
process by which a cooling gas changes into a liquid and releases thermal energy
Hot high ionized, electrically conducting gas is called...
What is plasma?
What is the nucleus?
How many electrons can be held in the innermost energy level of atoms?
What is 2?
Polar bond is when atoms (equally or unequally) share electrons
What is unequally?
Phase(s) of matter that do(es) not hold a definite shape.
When atoms of the same element have different mass numbers, they are known as _____ of that element.
What is an isotope?
Surrounding the nucleus of an atom are tiny particles called...
What are electrons?
A(n) _______ represents the area in an atom where an electron is most likely to be found.
What is an energy level?
Write the equation that represents the formation of water.
2H2 + O2 --> 2H2O
process by which a solid slowly changes to a gas without first entering a liquid state
What is sublimation?