Download Section 3-1 - Park Rapids school

Section 3-10
Pg 72 & 73
What are isotopes?
Name ________________________
Hour _____
Directions: Write the definition for the following tech term(s).
1. isotope:
Directions: Read section 3-10. Complete the following sentences or questions.
2. The ____________ _____________ of an atom never changes.
3. All atoms of the same element have the same number of _______________ in their nuclei.
4. Atoms of the same element that have different atomic masses are called ____________________.
5. The _____________ _____________ for each element can be found in the periodic table.
6. A(n) _______________ is an atom of an element that has a different number of neutrons.
7. All elements have ___________________ isotopes.
8. Three isotopes of ______________ are called protium, deuterium, and tritium.
9. An atom of hydrogen-2 has ________ neutrons.
10. Two important isotopes of uranium are U-235 and ____________________.
Directions: Write the one chapter summary sentence below for Lesson 3-10 found on pg 76.
11.