5.1 Flashcards
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What is an isotope?
Same protons and electrons. Different neutrons.
Do ++ attract?
NO
Do – attract?
NO
Do +- attract?
YEP
More charge means:
MORE FORCE
More distance means:
LESS FORCE
Where are neutrons and protons?
NUCLEUS
Where are electrons?
OUTSIDE NUCLEUS
CHARGE OF PROTONS?
+
CHARGE OF NEUTRONS?
0
CHARGE OF ELECTRONS?
-
mass of protons?
heavy
mass of electrons?
none
mass of neutrons?
heavy
Technetium has a mass of 100 and has a charge of -80. How many p, n, and e?
43 protons, 57 neutrons,
123 electrons
Promethium has 69 neutrons and 50 electrons. What is mass and charge?
+11 charge and 119 mass.
Why can isotopes be helpful?
They can aid medical research.
Two particles float away from each other. How does force change?
It decreases.
Two particles with high charges have a high what:
force
Is oxygen or lithium stronger?
Oxygen, more protons
Is lithium or potassium stronger?
Lithium, closer valance electrons
