Question

1. identify the heaviest element.
2. draw a neutral atom of only the heaviest element.
3. for the last 2 galaxies, estimate age using the age and elements of other galaxies
4. use the phet atom builder to help! google \phet atom builder\ or scan the qr code.

*use the the phet atom builder to help! google \phet atom builder\ or scan the qr code.
galaxy ngc 32458, distance: 10 billion light - years
age: 2 billion years
wavelength: 400 nm energy: 3 ev uv
500 nm 2.5 ev blue
600 nm 2 ev green
700 nm 1.7 ev red
800 nm 1.5 ev infrared

1. elements present: helium, hydrogen
2. circle the heaviest element you listed in number 1
3. draw a neutral atom of the heaviest element below:

galaxy ngc 11510, distance: 5 billion light - years

Explanation:

Step1: Identify elements and heaviest one

The elements listed are helium and hydrogen. Helium has an atomic number of 2 and hydrogen has an atomic number of 1. Helium is the heavier element.

Step2: Draw neutral - atom of helium

A neutral helium atom has 2 protons (P), 2 neutrons (N) in the nucleus, and 2 electrons in the first electron - shell. In the provided circle for the nucleus, we write 2 for the number of protons and 2 for the number of neutrons.

Answer:

1. Elements present: helium, hydrogen
2. Circle helium
3. In the nucleus of the drawn atom: P: 2, N: 2