Four mystery atoms (Q,R,S & T) are shown below. How many neutrons does each atom have?
_______
_______
_______
_______
Which of the four atoms are the same element?
_______and _______
Question 3
3.
Nuclear fusion occurs when __________________.
Question 4
4.
Nuclear fission occurs when __________________.
Question 5
5.
What happens to the nucleus of an atom that undergoes alpha decay?
Question 6
6.
Question 7
7.
Fill in the missing isotope symbol. You can type or draw.
Question 8
8.
Describe how the carbon-14 nuclei changed in this nuclear decay.
Question 9
9.
Hydrogen-1 fuses with hydrogen-2 to create a new nucleus. Gamma radiation is released in the process. Write the balanced nuclear reaction below. You can type or draw.
Question 10
10.
Hydrogen-1 fuses with with nitrogen-15. A new nucleus is made and an alpha particle is released. Write the balanced nuclear reaction below.
Question 11
11.
Radon-222 undergoes alpha decay. Write the balanced nuclear reaction. You can type or draw.
Question 12
12.
What is a stellar nebula?
Question 13
13.
Describe how a stellar nebula becomes a main sequence star.
Question 14
14.
What will our sun become in the next stage of its life?
Question 15
15.
Question 16
16.
Which two possible stars form after a supernova?
_______ OR _______
Question 17
17.
Describe what happens when the hydrogen fuel runs out in a main sequence star?
Question 18
18.
Question 19
19.
An isotope is shown below. Which of the following changes would result in the isotope osmium-186?
1 proton turns into 1 neutron and 1 positron
the loss of 2 protons and 2 neutrons
1 neutron turns into 1 proton and 1 high energy electron (beta particle)
the loss of gamma radiation
fission
fusion
Which star(s) has/have supernova explosions? Select all that apply.
low mass stars
large mass stars
massive stars
Arrange these galaxies in order of distance from earth, from closest (1) to farthest (4).
Galaxy A
Galaxy B
Galaxy C
Galaxy D
1 - Closest
2
3
4 - Farthest
Which element(s) is/are in this star? Select all that apply.