Chapter 2 Flashcards
What is the relative charge on a proton?
+1
What is the relative charge on a neutron?
0
What is the relative charge on an electron?
-1
What is the relative mass on a proton?
1
What is the relative mass on a neutron?
0
What is the relative mass on an electron?
1/2000
What is an isotope?
Have same amount of protons and electrons but different amounts of neutrons
What is the mass number on the periodic table?
Total number of protons and neutrons in the atom.
What is the atomic number on the periodic table?
Number of protons and the neutrons
Are electrons equal to neutrons or protons?
Protons
What does it mean when an ion has a charge of 2+?
Has lost two electrons.
What does it mean when an ion has a charge of 3-?
Has gained three electrons.
What is relative isotopic mass?
Is the mass of one isotope compared to one twelfth of the mass of one atom of carbon-12.
What is relative atomic mass?
Is the weighted mean mass of one atom compared to one twelfth of the mass of one atom of carbon-12.
What is the equation for relative atomic mass using % abundance?
(Sum of isotopic mass x % abundance)/ 100
What is the equation for relative atomic mass using relative abundance?
(Sum of isotopic mass x relative abundance)/ total relative abundance.
What is the Nitrate ion?
NO 3-
What is the Carbonate ion?
CO3 2-
What is the Sulphate ion?
SO4 2-
What is the hydroxide ion?
OH-
What is the ammonium ion?
NH4 +
What is the Zinc ion?
Zn 2+
What is the silver cation?
Ag+
What is the charge on the elements in group 1?
1+
