Chapter 2 End of Lecture Check In
Name:
1. Label the atomic number and the mass number for the following element:
a.
What element is this?
b.
How many protons does this element have?
c.
How many neutrons does this element have?
d.
How many electrons does this element have?
e.
Does this element satisfy the octet rule on its own?
2. What is the difference between an ionic bond and a covalent bond? Which bond
is stronger?
3. Is water polar or nonpolar? Why?
4. Black coffee has a pH of 5- is this acidic or basic?