Elements
Which element is number 1 on the periodic table?
hydrogen
the periodic table shows all 112 ___________
elements
protons have a ______ charge
positive
neutrons are found in the nucleus. True or false?
true
Which element has the symbol O?
oxygen
rows in the periodic table are called _________
periods
neutrons have a negative charge. True or false?
false
which particle is found in shells around the nucleus?
electrons
What is the symbol for carbon?
C
columns in the periodic table are called __________
groups
what is the symbol for a neutron?
n0
what is the rule to find how many electrons can fit in each shell?
2n2
A version of an element with a different mass is
an isotope
elements are arranged in order of their ________ number
atomic
Which subatomic patricles have practically no mass?
electrons
how many electrons can fit in the second shell?
8