1. The chemical properties of elements are determined by the ease with which they donate or accept electrons. Since elements belonging to a particular group have the same number of valence electrons they show similarities in their chemical properties.
2. A. Flourine B. Sodium C. Cobalt
3. Although electrons are added along a period, they are added to the same shell, so the radius doesn't increase. The nuclear force is acting on more electrons, and therefore the electrons keep getting closer to the nucleus. Hence the radius decreases.
4. N, As, and Sb starting from largest to smallest.
5. A. Flourine B. Bromine C. Bromine D. Flourine
1. It's the way they are arranged, and what they have in common.
1. All of the elements on the left side of the table, forms smaller positive ions, while the right side of the table forms larger negative ions.
2. As is the highest with 222, and Sb is the smallest with 62.
1. Why do elements in the same group have similar chemical properties?
They have similar properties because they have the same number of electrons in their outermost layer. The periodic table is man made and so they were also put in that order because their properties were the same.
3.Explain how the period and group trends in atomic radii are related to the electron configuration.
Down a group, electrons are added to the atom, but each time the number of shells increases. Meaning the atomic radii will increase.
Across a period, electrons are added to the same shell, so the atomic radii doesn't increase. Then the electrons get closer to the nucleus, so the radius decreases.
4.Antimony has the largest and Nitrogen has the smallest.
1. It is because they are arranged that way, with rising protons, elections and atomic numbers.
1. The way they were put in order, is a big key in electron configuration. That i just hey way that they were set up and how we have used them over the years.
2. Nitrogen has the smallest, while Antimony is the biggest.
1. They have same number of electrons in the outermost shell.
3. The group going down electrons are added to the atom increasing atomic radii.
The period going across electrons are added to shell so the atomic radii doesn't increase.
4. Antimony is the biggest and nitrogen is the smallest.
Elements in the same group have similar properties, because they have the same number of electrons in their outermost shell.
A. Fluorine B. Sodium C. Cobalt
As the, electrons are added to the atom the shell number increases. That is why the atomic radii increase as well.
Electrons are added along a period, but they are added to same shell. Therefore the radius doesn’t increase. The nuclear force is acting on more than one electron; therefore the electrons keep getting closer to the nucleus. That is why the radius decreases.
Antimony is the biggest. While Nitrogen is the smallest.
1. They have similar properties because they have the same number of electrons in the outermost shell.
2. Fluorine. Sodium. Cobalt
3.By going down the group, electrons are added to the atom. This increases the number of shells. By going across, the electrons are added to the shell, which doesn't increase the atomic radii.
4. The biggest is antimony, and the smallest is nitrogen.
Slide 35: 1). The way they are arranged on the table causes this.
2). a) chlorine b) sodium c) cobalt
Slide 55: 1). The elements on the left side make smaller ions, while the ones on the right make larger ions. 2). As is highest Sb is smallest
3). Fluorine Bromine Bromine Fluorine
1. they are arranged by class and what they have in common.
1. They were arranged where the elements on the left side lose electrons easily, and on the right side they get more.
2. Largest- As Smallest- Sb
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