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they generally have 3 valence electrons
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What 3 elements that are likely to donate 1 valence electron?
Elements in the 1st group have 1 valence electron. So they are likely to donate 1 electron to get more stable. potassium, rubidium and cesium are likely to donate 1 electron.
What group is an element with an outer level electron configuration consisting of one electron in the d orbital and two electrons in the ns orbital?
The elements in group 16 on the periodic table have four total electrons in their outer p orbitals.
What are the combining ratios of elements in group II with elements in Group VII of the periodic table?
1:3
Synthetic elements are found in what group?
The Actinoids group contain all the synthetic elements. All the elements that have an atomic weight of 95 and above do not occur naturally. They are part of the actinoid elemental group.
What is the reactivity of group 7?
The reactivity of group 17 elements differ as you move down the periods. Group 17 elements are missing 1 electron from their valance shell making them highly votile and reactive.I'll try not to make this confusing:1. As elements get bigger, they have a higher level of reactivity. (More "pull" needed from protons in the nucleus in order to keep valance shell electrons in orbit).2. As you move from left to right in the groups, you have a higher level of reactivity.3. Groups 1 and 17 have the highest levels of reactivity (except hydrogen in group 1) because they are away by only 1 valence electron.
The general electron configuration for atoms of all elements in Group 5A is?
ns^2np^3
How do you use periodic table to know the numbers of electrons available for bonding?
All of the elements, apart from the transition metals in the middle, are divided into groups. Group 1 elements have 1 electron in their outer shell, and this is the electron used in bonding. Group 2 have 2 electrons, Group 3 elements have 3, and so on. Group 8 elements have a full outer shell, so they generally don't react.
How many electrons does group 7A need to become stable?
In the modern periodic table, these elements belong to group 17. These elements have s2 p5 electron configuration. Hence they need one more electron from an electron donor to fulfill its valence shell to obtain noble gas configuration.The elements in the group 7A has 7 electrons in their outermost energy level. They gain 1 electron to get the noble gas configuration. The elements in the group 7A are called halogens.
How the d-block group number relte to the number of outer s and d electrons?
The d-block elements have two electrons in their outermost s sublevels. The group 3 elements have one d electron in their outermost d sublevel, the group 4 elements have two d electrons, adding one additional d electron with each subsequent group until group 12 in which the elements have ten d electrons.
What 3 elements that are likely to donate 1 valence electron?
Elements in the 1st group have 1 valence electron. So they are likely to donate 1 electron to get more stable. potassium, rubidium and cesium are likely to donate 1 electron.
What is the general valence shell configuration for the elements in group 7A?
Valence electron configuration in group 7A (halogens): ns2, np5 in which n=2, 3, 4, 5, ... etc. Starting with fluorine, F, electron configuration: (1s2), 2s2 2p5 (non valence electrons in () brackets)
What is the electron distribution for Na?
The electron configuration of sodium is: [Ne]3s1.
What group is an element with an outer level electron configuration consisting of one electron in the d orbital and two electrons in the ns orbital?
The elements in group 16 on the periodic table have four total electrons in their outer p orbitals.
Which element contains the same inside electron arrangement as phosphorus?
All of the elements in Period 3, excluding group 18/VIIIA, have the same inside electron arrangement as phosphorus. They all have the electron configuration of neon as their inside arrangement of electrons.
What element is group 1 period 3?
Third period has 8 elements. They have 3 electron shells.
What has 1 valence electron but has 4 energy levels?
This elemental atom will be in (column:) group 3, or 13, and (row:) period 4: 21-Sc or 31-Ga
Which element contains the same inside electron arrangement as phosphorus (p)?
All of the elements in Period 3, excluding group 18/VIIIA, have the same inside electron arrangement as phosphorus. They all have the electron configuration of neon as their inside arrangement of electrons.
