Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
26 Cards in this Set
- Front
- Back
|
Which scientist is credit for first explaining that substances typically aren't just made up of one kind of atom?
|
Which scientist is credit for first explaining that substances typically aren't just made up of one kind of atom?\
Democritus |
|
|
What conclusions did Jush Priestley get off his experiment and what was his experiement?
|
What conclusions did Jush Priestley get off his experiment and what was his experiement?
some substances are combination of other elements, oxegen gas off of mercury |
|
|
What conclusions did Atntoine Laroiser come to under what kind of experiment>
|
What conclusions did Atntoine Laroiser come to under what kind of experiment>
mass in conserved in chemical reactions, hyrdoen & O combined |
|
|
What did Josh Proust conclude in his experiments?
|
What did Josh Proust conclude in his experiments?
law of definite proportions- reacting elements comine in defined whole ratios |
|
|
Who formed the Atomic theory?
|
Who formed the Atomic theory?
John Dalton |
|
|
What are the four elements of the Atomic theory?
|
What are the four elements of the Atomic theory?
composed of invisible parts called atoms, atom of the same atom have same properties and differ from other atoms, compounds are defined as the combining of atoms chemically speaking, and when elements form compounds they react in whole # ratios |
|
|
After Daltons time, what were seen and organized is relation to elements?
|
After Daltons time, what were seen and organized is relation to elements?
pattern & characteristics of different elements |
|
|
What did Dobereiner conclude?
|
What did Dobereiner conclude?
relationship between weight and reaction of groups of three elements, couldn't describe all |
|
|
What did Newlands say?
|
What did Newlands say?
when placed in weight proportion and pattens of chemical reactivity among elements, explains all things |
|
|
What is the father of the modern day periodic table?
|
What is the father of the modern day periodic table?
Medeleyer |
|
|
How did Medeleyer organize the table of elements?
|
HOw did Medeleyer organize the table of elements?
symbol and atomic weight |
|
|
How did Medeleyers table change after his dream?
|
How did Medeleyers table change after his dream?
went from descending to increasing in weight with some elements left missing |
|
|
Who gave the biggest challenge to Medeleyer's table?
|
Who gave the biggest challenge to Medeleyer's table?
ramsay |
|
|
What did Ramsay find and what was added to the table of elements after that?
|
What did Ramsay find and what was added to the table of elements after that?
argon gas-didn't react, formed noble gases |
|
|
What are the 5 noble gases?
|
What are the 5 noble gases?
helium argon, neon, kryptona dn xeon |
|
|
What is the name of the row and collumn on periodic table?
|
What is the name of the row and collumn on periodic table?
|
|
|
What determines the atomic number and the atomic mass?
|
What determines the atomic number and the atomic mass?
atomic number- # of protons atomic mass= # of proton + neutron |
|
|
What is a covalent bond and what are the two kinds of covalent bonds?
|
What is a covalent bond and what are the two kinds of covalent bonds?
nonpolar and polar, sharing of electrons |
|
|
What is a non-polar covalent bond?
|
What is a non-polar covalent bond?
attraction that just shares electrons |
|
|
What is a polar bond?
|
What is a polar bond?
unequal distribution of charge between elements and thus the nucleus and electrons go toward each other |
|
|
What is electronnegativity?
|
What is electronnegativity?
attraction an elements gives to a bond |
|
|
What is an ionic bond?
|
What is an ionic bond?
giving of an electron |
|
|
What are carbohydrates?
|
What are carbohydrates?
sugar |
|
|
What are lipids?
|
What are lipids?
fat, oil, wax, steriod, cholesterol |
|
|
What are nucleic acid?
|
What are nucleic acid?
ATCG- form DNA and RNA |
|
|
What are amino acids?
|
What are amino acids?
building block of protein |
