Elemnt name, atomic number, atomic mass, protons, neutrons, elsctrons 1-10

Hydrogen Atomic Number: 1 Symbol: H Atomic Mass: 1 Protons: 1 Neutrons: 0 Electrons: 1 Helium Atomic Number: 2 Symbol: He Atomic Mass: 4 Protons: 2 Neutrons: 2 Electrons: 2 Lithium Atomic Number: 3 Symbol: Li Atomic Mass: 7 Protons: 3 Neutrons: 4 Electrons: 3 Beryllium Atomic Number: 4 Symbol: Be Atomic Mass: 9 Protons: 4 Neutrons: 5 Electrons: 4 Boron Atomic Number: 5 Symbol: B Atomic Mass: 11 Protons: 5 Neutrons: 6 Electrons: 5 Carbon Atomic Number: 6 Symbol: C Atomic Mass: 12 Protons: 6 Neutrons: 6 Electrons: 6 Nitrogen Atomic Number: 7 Symbol: N Atomic Mass: 14 Protons: 7 Neutrons:7 Electrons: 7 Oxygen Atomic Number: 8 Symbol: O Atomic Mass: 16 Protons: 8 Neutrons: 8 Electrons: 8 Fluorine Atomic Number: 9 Symbol: F Atomic Mass: 19 Protons: 9 Neutrons: 10 Electrons: 9 Neon Atomic Number: 10 Symbol: Ne Atomic Mass: 20 Protons: 10 Neutrons: 10 Electrons: 10 Sodium Atomic Number: 11 Symbol: Na Atomic Mass: 23 Protons: 11 Neutrons: 12 Electrons: 11 Magnesium Atomic Number: 12 Symbol: Mg Atomic Mass: 24 Protons: 12 Neutrons: 12 Electrons: 12 Aluminum Atomic Number: 13 Symbol: Al Atomic Mass: 27 Protons: 13 Neutrons: 14 Electrons: 13 Silicon Atomic Number: 14 Symbol: Si Atomic Mass: 28 Protons: 14 Neutrons: 14 Electrons: 14 Phosphorus Atomic Number: 15 Symbol: P Atomic Mass: 31 Protons: 15 Neutrons: 16 Electrons: 15 Sulfur Atomic Number: 16 Symbol: S Atomic Mass: 32 Protons: 16 Neutrons: 16 Electrons: 16 Chlorine Atomic Number: 17 Symbol: Cl Atomic Mass: 35 Protons: 17 Neutrons: 18 Electrons: 17 Argon Atomic Number: 18 Symbol: Ar Atomic Mass: 40 Protons: 18 Neutrons: 22 Electrons: 18 Potassium Atomic Number: 19 Symbol: K Atomic Mass: 39 Protons: 19 Neutrons: 20 Electrons: 19 Calcium Atomic Number: 20 Symbol: Ca Atomic Mass: 40 Protons: 20 Neutrons: 20 Electrons: 20

Afraidsugar lol it’s the third one

The density of water is 1 g/cm cubed and in order for the pebble to sink its density has to be greater than the density of water and in order for the twig to float its density has to be less than the density of water