Question

periodic table
order the following atoms from highest to lowest number of protons.
potassium
gallium
barium
aluminum
tin

Explanation:

Step1: Find atomic numbers (protons)

• Potassium (K): Atomic number 19 (19 protons)
• Gallium (Ga): Atomic number 31 (31 protons)
• Barium (Ba): Atomic number 56 (56 protons)
• Aluminum (Al): Atomic number 13 (13 protons)
• Tin (Sn): Atomic number 50 (50 protons)

Step2: Order by protons (highest to lowest)

Compare atomic numbers: 56 (Ba) > 50 (Sn) > 31 (Ga) > 19 (K) > 13 (Al)

Answer:

barium, tin, gallium, potassium, aluminum