Question | Answer |
A scientific theory is a summary of ___________. | explanations |
A scientific law is a summary of _____________. | observations |
Scientific theories __________ when new evidence is found. | change |
All the isotopes have the same number of ____________. | electrons |
Atoms of the same element having the same atomic number, but different mass numbers are called? | isotopes |
The number of protons in the nucleus of an atom is called its? | atomic number |
For an atom, the number of protons and _______ are the same. | electrons |
Atoms that have the same number of protons, but different number of neutrons are called_______________. | isotopes |
What is matter? | anything that has mass and volume and occupies space |
Periods on the periodic table are arranged? | horizontaly |
Can atoms of two different elements have the same atomic number? why? | No because they would be the same element |
What are the postulates of the kinetic molecular theory? | all matter consists of tiny particles in constant motion and is proportional to temperature |
What are the the three common states of matter. | solid liquid gas |
Calcium | Ca |
Chromium | Cr |
Copper | Cu |
Cobalt | Co |
Gold | Au |
Silver | Ag |
Tin | Sn |
Iron | Fe |
Lead | Pb |
Magnesium | Mg |
Manganese | Mn |
Mercury | Hg |
Nickel | Ni |
Nitrogen | N |
Potassium | K |
Sulfur | S |
Sodium | Na |
Which subatomic particles contributes more to the atoms mass? | protons and neutrons |
Which subatomic particles determine the atoms chemical properties? | elements |
Which subatomic particles are the smallest? | electrons |
Which subatomic particles are almost the same weight? | protons and neutrons |
Which subatomic particles are almost the same size? | protons and neutrons |
Which subatomic particles determines the identity of an element? | protons |
Which subatomic particle determines the chemistry of an element? | electrons |
Carbon | C |
How do you determine the element by seeing only the electron configurations 1s2s22p3? | adding up all little numbers equaling atomic number |
Sub Level - S # of orbitals ? | 1 |
Sub Level - P # of orbitals ? | 3 |
Sub Level - D # of orbitals ? | 5 |
Sub Level - F # of orbitals ? | 7 |
What is ground level? | S |
Groups 1-3 ______ ions? Making them _____ charge? | lose, positive |
Groups 15-17 ______ ions? Making them _______ charge? | gain, negative |
If the outer most shell is full it is _________ ? | noble |
Difference between elements and compounds? | elements can not be broken down compounds can |
Physical States of SOLID? | rigid, close packed |
Physical States of LIQUID? | rigid, close packed |
Physical States of GAS? | atoms are further apart |
Temp low vibrations _____? | low |
Temp high vibration ______? | high |
Isotopes = different number of______? | neutrons |
Atom loses electrons making it a positive ion. | Cation |
Atom gains electron making it a negative ion. | Anion |
Light from sun is ____________, light from elements is ___________. | continuous, quantrum |