Answer:
group 1, 2 and 3 tend to get rid of electrons and start to form compounds with groups 7, 6, and 5.
Explanation:
A) true
b) false The atomic mass is never less than the atomic number.
c) this one is a bit tricky. For hydrogen, the atomic mass can equal the atomic number IF you are rounding the mass to the nearest whole number. That only works for hydrogen, though
d) false The larger the element, the more neutrons that are needed to keep the nucleus stable.
e) true
f) true
Answer:
-pneumonoultramicroscopicsilicovolcanoconiosis
-pneumonoultramicroscopicsilicovolcanoconiosis
Explanation:
4.8 g/cm3 with sig figs since it's mass/volume you divide 76 grams by 16 cm3
