If 3 is an element of A and 3 is not an element of B, then which of the following is NOT true? a. 3 is an element of B complement b. 3 is an element of A union B c. 3 is an element of A intersect B If the set S has n elements then prove that A(S) has n...
atom系一种element入面最细而且不能分割的部份,而Ion是由于atom/molecule得到或者失去electron时而令atom/molecule中的正负电荷失衡,得到净正或负电荷,咁ion都系element入面最细而且不能分割的部份?polyatomic ion系多过一个 atom 的 ion,咁他算不算系compound?
a我想我们应该节约用水,做到人人有责 I thought we should save the water used, achieves everybody has a responsibility [translate] aa.概念:元素、原子、分子、化合物、同位素、元素周期律; a. concept: Element, atomic, molecular, compound, isotope, period of element law; [translate] ...
molecule - (physics and chemistry) the simplest structural unit of an element or compound free radical, radical - an atom or group of atoms with at least one unpaired electron; in the body it is usually an oxygen molecule that has lost an electron and will stabilize itself by stealing an ...
What is the difference between a molecule and an atom? What atomic particle in an atom is the same for each element? What is the difference between atoms and protons? What is the difference between an isotope and an element? What is the difference between atomic number and mass number of ...
What is the smallest particle of an element that retains its properties? Molecule Electron Atom Proton « Previous123456Next » Popular Quizzes Atomic Quiz: Protons, Neutrons, And Electrons Atomic Quiz: Protons, Neutrons, and Electrons
molecule d. compound e. ion Which term below includes the other terms? A) atom B) molecule C) electron D) element Define and distinguish between matter, elements, and compounds. What is the biological definition of an atom? Define the term element as used in many biological processes....
Molecule A small particle; a tiny bit. Atom An extremely small part, quantity, or amount. Molecule (chemistry) The smallest particle of a specific element or compound that retains the chemical properties of that element or compound; two or more atoms held together by chemical bonds. Hydrogen ...
The ShK analogs generally comprise ShK toxin attached to a chemical entity (e.g. an atom, molecule, group, residue, compound, moiety, etc.) that has an anionic charge. In some embodiments the chemical entity attached to the ShK toxin may comprise an amino acid residue. The ShK analogs ...
Examples of substances that are not atoms include water (H2O),table salt(NaCl), and ozone (O3). Basically, any material with a composition that includes more than one element symbol or that has a subscript following anelement symbolis a molecule or compound rather than an atom....