a. Has an atomic number equal to 10b. Has 5 electronsc. Its atomic number is equal to the answer to this mathematical problem: 2 times 5 plus 8divided by 2 minus 8d. A gas that combines easily with a metal to form table salt.e. Belongs to the 3rd energy level family IV Af. A metal that is important to bone formationg. A gas that makes up 21 % of the airh. Has a valence electron of 3s1i. The 1st element in the group VIIIAj. Has 5 valence electrons in the 3rd energy levelk. Belongs to the same group as the element w, named after the place of discoveryl. A metal used in making cooking utensilsm. A yellow crystalline solid nonmetal.n. Has a number of electrons that is one less than the element in Ao. Belongs to the same group as that of the element in h but with a higher energy levelp. Has complete valence electron in period 4q. Has an atomic no. that is twice that of the element in zr. A metalloid that got its name from a countrys. A noble gas with an atomic no. twice that of the element in nt. A nonmetal with a valence of 2s2 2p3u. Has the lowest electronegativity in group IAv. 1st element in group 2Aw. Has an atomic no. that is one less than that of the element in l.x. Has the biggest atomic radius in group VAy. Has 45 neutrons and a mass number of 80z. Has 3 protons

a. The element with an atomic number equal to 10 is Neon (Ne). b. The element with 5 electrons is Boron (B). c. The atomic number equal to the answer to this mathematical problem: 2 times 5 plus 8 divided by 2 minus 8 is 1, which is Hydrogen (H). d. A gas that combines easily with a metal to form table salt is Chlorine (Cl). e. The element that belongs to the 3rd energy level family IV A is Silicon (Si). f. A metal that is important to bone formation is Calcium (Ca). g. A gas that makes up 21 % of the air is Oxygen (O). h. The element with a valence electron of 3s1 is Sodium (Na). i. The 1st element in the group VIIIA is Helium (He). j. The element with 5 valence electrons in the 3rd energy level is Phosphorus (P). k. The element that belongs to the same group as the element W (Tungsten), named after the place of discovery (Sweden), is Scandium (Sc). l. A metal used in making cooking utensils is Aluminum (Al). m. A yellow crystalline solid nonmetal is Sulfur (S). n. The element that has a number of electrons that is one less than the element in A (Neon) is Fluorine (F). o. The element that belongs to the same group as that of the element in h (Sodium) but with a higher energy level is Potassium (K). p. The element with complete valence electron in period 4 is Krypton (Kr). q. The element with an atomic no. that is twice that of the element in z (Lithium) is Beryllium (Be). r. A metalloid that got its name from a country is Germanium (Ge). s. A noble gas with an atomic no. twice that of the element in n (Fluorine) is Neon (Ne). t. A nonmetal with a valence of 2s2 2p3 is Nitrogen (N). u. The element with the lowest electronegativity in group IA is Francium (Fr). v. The 1st element in group 2A is Beryllium (Be). w. The element with an atomic no. that is one less than that of the element in l (Aluminum) is Magnesium (Mg). x. The element with the biggest atomic radius in group VA is Francium (Fr). y. The element with 45 neutrons and a mass number of 80 is Strontium (Sr). z. The element with 3 protons is Lithium (Li).