vocab
practice test questions
scenario questions
practice test questions
vocab
100
Gas
A state of matter with NO definite shape or volume
100
An ionic bond is formed between_?(a) two metal atoms,(b) two non-metal atoms ,(c) one metal atom and one non-metal atom,(d) one metal atom and one metalloid atom
(c) one metal atom and one non-metal atom
100
Name two metals that don't get corroded?
Gold(Au),and platinum(pt)
100
What is the electron configuration of sodium?
1s22s22p63s1 or [Ne]3s1
100
Mass Number
The total number of protons and neutrons in the nucleus of an atom.
200
soild
A state of matter that HAS a definite shape and a definite volume
200
The covalent compounds are soluble in? (a) all acids,(b) all bases,(c) all solvents,(d) non-polar solvents
(d) non-polar solvents
200
Identify the most reactive and least reactive metals:Al,K,Ca,Au
Most reactive metal:K(potassium),Least reactive metal:Au(gold)
200
What is the electron configuration of As?
1s22s22p63s23p64s23d104p3 or [Ar]4s23d104p3
200
Neutral Solution
an aqueous solution in which the concentrations of hydrogen and hydroxide ions are equal; it has a pH of 7.0
300
Solubility
A measure of how much solute can dissolve in a given solvent at a given temperature and pressure
300
Which of the following elements in group 17 is the most reactive?A.oxygen,b.sodium,C.fluorine,D.magnesium
C.fluorine
300
Respiration is an:A.exothermic reaction,B.endothermic reaction,C.Both a and B,D.none
A.exothermic reaction
300
What is the electron configuration of H?
1s1
300
what are the three classifications of matter?
Elements,compounds,and mixtures
400
Law of Conservation of Mass
law that states that the total mass of the reactants before a chemical reaction is the same as the total mass of the products after the chemical reaction.
400
Which of the following best describes the correct order of oxygen, fluorine, and nitrogen’s atomic radii?A.(O < F < N),B.(N < F < O), C.(F < O < N), D.(O < N < F)
C.(F < O < N)
400
which atom would be expected to have a half-filled 6p subshell?
BI
400
What is the electron configuration of neon?
1s22s22p6 or [He]2s22p6
400
what is the ratio of mass to volume of a substance?
density
500
Beta Particle
The term given to 'loose' electrons that come from radioactive decay
500
What is the other name for group 18th elements?A.Noble gases,B.Alkali metals C.Alkali earth metals,D.Halogens
A.Noble gases
500
which of the following atoms contains only three valence electrons:Li,B,N,F,Ne?
B
500
What is the electron configuration of radium?
[Rn]7s2
500
what is the differences between physical changes and chemical changes?
physical changes alter physical properties, while chemical changes transform substances into new substances