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In present investigation we employ IBM-2 parameters in Hamiltonian operator and applying the NPBOS bundle to determine mixed symmetry states for even-even  218-224  Ra isotopes, in addition to extract some theoretical nuclear properties, one of which the excited energy levels, which gave best match between practical data and theoretical results specially for the ground state bands, and acceptable agreement for semi β bands and semi γ bands. The (MSS) property which gets a speedy reaction while changing majorana term δ2 due to mixture between wave function for protons and neutrons was diagnosed for levels Energy ratios were calculated between and which shows these isotopes have a varied dynamic stretch starting from their pure vibrational state at A = 218 transition state U (5) - O (6) at A = 220 and finally transition state O (6)-SU (3), when A = 222 And 224, respectively. Finally, determined the likelihood for electric quadruple transition B(E2), magnetic dipole B(M1), which All express a decent agreement with the practical data.

Mixed Symmetry States for even-even 218-224 Ra Isotopes by using (IBM-2)