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;
14 Cards in this Set
- Front
- Back
|
Atoms are small particles that cannot be ______________?
|
Atoms are small particles that cannot be created, divided, or destroyed.
|
|
|
What are electrons?
|
Negatively charged, found in electron clounds, and mass is almost zero.
|
|
|
What are protons?
|
Positively charged, found in the nucleus, mass is 1 amu
|
|
|
What are neutrons?
|
Have no charge, found in the nucleus, mass is 1 amu
|
|
|
What two particles make up the nucleus?
|
Protons and Neutrons
|
|
|
Is the protons the same as the atomic number? (T or F)
|
True
|
|
|
The element Gold (Au) has 79 protons and the atomic mass is 197; How many neutrons are there?
|
118
|
|
|
Electrons do or do not travel in definite paths.
|
Electrons do not travel in definite paths.
|
|
|
To get the number of neutrons, you subtract the mass number from the atomic number? (T or F)
|
True
|
|
|
Who stated that electrons can jump between levels?
|
Bohr
|
|
|
If there is 56 protons and 81 neutrons, what is the atomic mass?
|
137
|
|
|
What is a isotope?
|
An atom that have the same number of protons but have different numbers of neutrons.
|
|
|
Atoms of an element are not alike. (T or F)
|
False, atoms of an element are exactly alike
|
|
|
Can atoms join with another atom to make a new substance?
|
Yes
|
