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What does the group of the periodic have to do with reactivity?
The table was organized so that elements of similar properties are in the same group. What (partly) determines reactivity is the number of electrons an atom has in it's ground state. . Within the atom electrons are organized in shells. Atoms are stable when they have 8 electrons in their outer shell (for hydrogen and helium it is 2 electrons.) . Elements of: Group 18 have 8 electrons in their outer shells Group 17 have 7 electrons in their outer shells Group 16 have 6 electrons in their outer shells Group 15 have 5 electrons in their outer shells Group 14 have 4 electrons in their outer shells Group 13 have 3 electrons in their outer shells Groups 3-12 have varied number of electrons in their outer shells Group 2 have 2 electrons in their outer shells Group 1 have 1 electron in their outer shells
What is a organized series of reaction steps in which membrane-bound arrays of enzymes and other molecules give up and accept electrons in turn?
electronic transfer chain
Summarize how the periodic table is organized and tell this organization is useful?
The number of electrons an element has determine the organization. This table helps in making predictions about how an element will chemically react.
WHY does calcium belong in group 2?
The periodic table is organized in order of increasing number of electrons. Column-wise, the elements are divided into groups. With the exception of the transition metals in the middle of the period table, all the other groups have the same number of valence electrons within each groups. Calcium has 2 valence electrons, meaning that there are two electrons in its outermost shell of electrons. All group 2 elements have two valence electrons. So calcium belongs in group 2. It is also there because of how the table is arranged in the order of increasing atomic number
Tissues are organized into functional units called?
Tissues are organized into organs. Cells organized into tissues Tissues organized into organs Organs organized into organ system
Electrons are organized in a series of?
electron shells
How are electrons in an organized?
Electrons occupied certain discrete energy levels around the nucleus.
How are electrons in atom organized?
Electrons occupied certain discrete energy levels around the nucleus.
How does the arrangement of electrons in a magnet compare to metals that are not metallic?
electrons in magnets are organized and generally pointing in the same direction
How are electrons in a atom organized?
Electrons are generally gathered around an atom beginning with the lowest possible quantum numbers.
Electrons are organized in a series of what?
orbitals, each of which can hold 2 electron of opposite spin.
Electrons are organized in a series of what around the nucleus of an atom?
Electron shells, orbitals, and sub-orbitals.
How are elements listed on the periodic tabel?
They are organized by atomic number (the number of protons/electrons in the element).
The elements within the periodic table are organized by?
1) atomic number (number of protons) 2) valance electrons
What is the best description of how an atom is organized?
A small core of nucleons (protons and neutrons) surrounded by an attenuated cloud of electrons.
How are the electrons organized in the periodic table?
The modern periodic table is arranged in the increasing order of their atomic number and repeating properties. The elements in the same family / group have the same number of valence electrons.
What does the group of the periodic have to do with reactivity?
The table was organized so that elements of similar properties are in the same group. What (partly) determines reactivity is the number of electrons an atom has in it's ground state. . Within the atom electrons are organized in shells. Atoms are stable when they have 8 electrons in their outer shell (for hydrogen and helium it is 2 electrons.) . Elements of: Group 18 have 8 electrons in their outer shells Group 17 have 7 electrons in their outer shells Group 16 have 6 electrons in their outer shells Group 15 have 5 electrons in their outer shells Group 14 have 4 electrons in their outer shells Group 13 have 3 electrons in their outer shells Groups 3-12 have varied number of electrons in their outer shells Group 2 have 2 electrons in their outer shells Group 1 have 1 electron in their outer shells
