Abstract: A measurement of the simultaneous fall of seven solid chemical elements is performed in a vacuum from a height of 110 meters. Fall distance differences were observed relative to Al due to acceleration differences up to Δa_Al,Li/a_Al 0.045(1) % which explain the non-equivalence of and the inertial mass m_jⁱ and gravitational mass m_j^g. The result confirms m_jⁱ = m_j^g (1-Δ_j^MD/f) with a factor f = 6.7(4) whereby Δ_j^MD is the relative mass defect of isotopes, measured with mass spectrometers. A composition dependency of the Free Fall is also observed in the motions of planets in order of 0.15%. By an assumed second invariant property of the four stable elementary particles e, p, P and E (negative charged proton), the m^g of a body is proportional to its gravitational charge g_m= g m^g = g N (m_P-m_e) on one hand. On the other hand, the inertial mass is mⁱ = m^g– E_B/c² with E_B= m^g Δ^MD c². Newton’s law mⁱ a_m = –G M^g m^g/r²= – g_M g_m/4r² with the gravitational constant G = g²/4 corresponds solely to the static gravitational field, similar to Coulomb law of static electricity. Therefore, the Newtonian G = G M^g/ Mⁱ m^g/mⁱ G (1+Δ^MD (M)+ Δ^MD (m)) is composition dependent.

PACS: 04.20.Cv, 04.80.Cc, 12.10.-g, 14.02.Dh

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Dropexperiment with Li/C/Pb compared to Al