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What happens to the atomic radius as you go across a period?
It decreases as you move from left to right because there is an increase in positive charge in the nucleus as you go from left-to-right. Each time you go over an element it has one more electron and proton added to the principal energy level, so the nucleus pull increases and it holds the valence electron in tighter.
What does the sequence in each period represent in relation to electrons?
The sequence in each period represents in relation to electrons is that as you look from left to right on the periodic table, you see a pattern; an increase of the atomic number. The number of electrons equals the number of protons, and the number of protons equals the atomic number.
How does atomic radius vary down a group?
Atomic radius increases down a group on the periodic table because with each additional period an energy level is added.
What happens to the atomic radius as you go opwn the column?
Atomic radius (or size) increases as you move down a group from top to bottom. This is because with each spot you move down, you go up a period, which means you add an energy level to the atom. This translates to electrons being farther and farther from the nucleus (which also lowers electronegativity and ionization energy.)
Are the atomic mass and atomic number directly proportional to each other?
no
What happens in most cases to the atomic mass as you go from left to right in each period?
it increases
What pattern or trend do you notice between atomic radius and electronegativity energy?
In general, they are opposing. Electronegativity increases going left to right in a period and up in a group. Atomic radius decreases going left to right in a period and up in a group.
What happens to the atomic radius as you go across a period?
It decreases as you move from left to right because there is an increase in positive charge in the nucleus as you go from left-to-right. Each time you go over an element it has one more electron and proton added to the principal energy level, so the nucleus pull increases and it holds the valence electron in tighter.
What do you noticed about the atomic number in each period?
Atomic number increases from left to right across a period.
Does the atomic radius decrease as you move up a group and across a period from left to right on the periodic table?
the atomic radius decreses from left to right in periodic table due to increase in the number of succesive element the electrons of the outermost shell are more attracted towards nucleus and the atomic radius or atomic size decreases.
What makes the atomic radius change along a period in the periodic table?
More protons in the nucleus pull the electrons in, making the atomic radius smaller.
As you move across a period of the periodic table from left to right what happens to the number of protons contained by each element?
I hate Chemistry!!!!!!!!!!!!!!!!!The number of protons increases as you go across a period.
What does the sequence in each period represent in relation to electrons?
The sequence in each period represents in relation to electrons is that as you look from left to right on the periodic table, you see a pattern; an increase of the atomic number. The number of electrons equals the number of protons, and the number of protons equals the atomic number.
How does atomic radius vary down a group?
Atomic radius increases down a group on the periodic table because with each additional period an energy level is added.
What are the general characteristics of natural law for each period?
laws & legal issues
What relationship does an atomic number have to the periodic table?
The atomic symbols in a modern periodic table are usually arranged so that, from left to right, each atom has an atomic number higher by 1 than the atom immediately to the left, and the first atom in a period has an atomic number higher by 1 than the rightmost atom in the period immediately above.
What is the periodic trend for atomic size from top to bottom in a group?
The size of an atom refers to its atomic radius. Atomic radius generally increases down a group. This is because the number of energy levels increase down a group with each additional period. Each of the subsequent energy levels are larger than the last, increasing the distance of the electrons from the nucleus, which increases the atomic radius.Atomic radius generally decreases across a period. This is because electrons are being added to the same energy level at the same time that protons are being added to the nucleus. This creates a stronger force of attraction by the nucleus for the electrons, which pulls the electrons closer to the nucleus, decreasing the atomic radius.It is important to note that the periodic trends are not laws. There are exceptions to the general trends in both the representative elements and the transitional elements.
