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sekarang jelaskan dulu: apa definisi logam? yg gw nemu salah satu definisinya seperti ini: Most metals are conductors of electricity, have crystalline solids with a metallic luster and have a high chemical reactivity. Many of these elements are hard and have high physical strength. The metal series includes all elements of the alkali, alkali-earth, inner-transition (lanthanides and actinides series), transactinides and transition series as well as some elements of the metalloid series (elements: Ge, Sb and Po).
yaaa... efeknya ga bersifat akut, kecuali di luar ambang batas amannya.