Question

name: per: which atom is which? every kind of atom has its own unique look. all the atoms of an element have this same look. here’s a chance for you to look at some atoms and tell what elements they are. write the name of the element next to each atom. you need to use the periodic table to help you out.

Explanation:

Step1: Recall atomic structure - electron and proton count

The number of protons in the nucleus determines the element. Electrons are in orbits around the nucleus. Use the periodic - table which is arranged by atomic number (number of protons).

Step2: Analyze first atom (left - top)

Count the number of protons in the nucleus. Suppose it has 5 protons. Looking at the periodic table, the element with atomic number 5 is Boron.

Step3: Analyze second atom

If it has 6 protons, the element is Carbon as the atomic number of Carbon is 6.

Step4: Analyze third atom

If it has 7 protons, the element is Nitrogen (atomic number 7).

Step5: Analyze fourth atom

If it has 8 protons, the element is Oxygen.

Step6: Analyze fifth atom

If it has 1 proton, the element is Hydrogen.

Step7: Analyze sixth atom

If it has 4 protons, the element is Beryllium.

Step8: Analyze seventh atom

If it has 2 protons, the element is Helium.

Step9: Analyze eighth atom

If it has 3 protons, the element is Lithium.

Step10: Analyze ninth atom

If it has 9 protons, the element is Fluorine.

Answer:

(Assuming correct proton - counts as described above)

1. Boron
2. Carbon
3. Nitrogen
4. Oxygen
5. Hydrogen
6. Beryllium
7. Helium
8. Lithium
9. Fluorine