Web14 apr. 2024 · Sodium + water → sodium hydroxide + hydrogen 2Na (s) + 2H2O (l) → 2NaOH (aq) + H2(g) In general, the more reactive the metal, the more rapid the reaction … Web1 There are eight elements in the second row (lithium to neon) of the periodic table. 1 (a) Figure 1 shows an atom with two energy levels (shells). Figure 1 Z 1 (a) (i) Complete Figure 1 to show the electronic structure of a boron atom. [1 mark] 1 (a) (ii) What does the central part labelled Zrepresent in Figure 1? [1 mark]

6.9: Hydrogen and Alkali Metals - Chemistry LibreTexts

Web14 jul. 2024 · First, lithium is the lightest of all the metals in the periodic table, with an atomic mass of only 6.94. Second, it has the greatest electrochemical reduction potential and provides the largest energy … WebChemistry Periodic Table. 78.114 "g/mol" To find the molar mass of a compound, we first look at a periodic table to find the molar masses of each element in the compound: The chemical formula for benzene is ul ("C"_6"H"_6 So we need only look at the values for carbon and hydrogen. peter o\u0027toole and richard burton

Physical properties of the alkali metals - Group 1 - BBC Bitesize

WebPaper 1: 4.1 Atomic structure and the periodic table: 4.1.2 The periodic table Learn the flashcards, games, furthermore view — since free. WebThe metals are placed on the left and the non-metals are placed on the right. Groups 1 and 2 are all metals and groups 7 and 0 only contain non-metals. The elements in the middle groups begin with non-metals at the top and end with metals at the bottom. Group 4 can be taken as an example to explain this. C. WebThese atoms are from elements in the second row (lithium to neon) of the periodic table. € Which atom is from an element in Group 3 of the periodic table? € Tick (7 ) one box. € Atom X Atom Y Atom Z (1) (d)€€€€€Figure 3 shows the electron arrangement of a different atom from an element in the second row of the periodic table. € peter o\u0027toole and sian phillips