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Do the elements in the periodic table have the same mass?
No! The mass of one atom of each element increases as you move down and to the right on a periodic table. The mass of an atom of a particular element is called its atomic mass.
What happens to the reactivity of left to right across the periodic table?
Across a period, as we move from left to right, the electronegativity increases in the periodic table.
How was mendeleevs periodic table like todays periodic table?
Mendeleev's periodic table arranged elements by increasing atomic mass and grouped elements with similar properties together. Today's periodic table is similar, but it is arranged by increasing atomic number, which reflects the number of protons in an atom's nucleus. Both tables also show periodic trends in properties as you move across and down the table.
What happens to the atomic radius as you move down the periodic table?
Down a group, the atomic radius increases as the number of shells or energy levels increases.
In the periodic table elements that are relatively larger in size appear in the?
In the periodic table, elements that are relatively larger in size appear in the bottom left corner. This is because the size of an atom increases as you move down a group due to the addition of energy levels.
What happens to elements as you move down the periodic table?
they do something
The number of electrons in an atom decreases as you move from left to right in the periodic table.?
False
Do the elements in the periodic table have the same mass?
No! The mass of one atom of each element increases as you move down and to the right on a periodic table. The mass of an atom of a particular element is called its atomic mass.
What happens to the reactivity of left to right across the periodic table?
Across a period, as we move from left to right, the electronegativity increases in the periodic table.
What happens to the mass number as you move from left to right in the periodic table?
It increases
The number of electrons in an atom decreases as you move from left to right in the periodic table?
This is not accurate. The number of electrons in an atom does not decrease as you move from left to right in the periodic table. The number of electrons increases across a period, as you move from left to right, based on the atomic number.
Describe the number of valence electrons in each atom as you move down group 2 in the periodic table?
As you move down group 2 in the periodic table, the number of valence electrons in each atom remains the same, at 2. This is because elements in the same group have the same number of valence electrons, regardless of the period they are in.
How was mendeleevs periodic table like todays periodic table?
Mendeleev's periodic table arranged elements by increasing atomic mass and grouped elements with similar properties together. Today's periodic table is similar, but it is arranged by increasing atomic number, which reflects the number of protons in an atom's nucleus. Both tables also show periodic trends in properties as you move across and down the table.
Modern periodic table comparision with other periodic tables?
The old periodic table was arranged according to the mass number (the weight of the atom overall, including neutrons, protons and electrons), whereas the modern periodic table is arranged according to the atomic number (which only includes the number of protons present in the atom, and increases by one as you move from left to right across the table). This makes a difference because some atoms have unequal numbers of protons and neutrons, which can throw off the weight of the atom.
What happens to the category of elements as you move left to right on the periodic table?
the number of collecting protons gets bigger.
Does shielding increase as you move down a group in the periodic table?
Yes, shielding increases as you move down a group in the periodic table.
How does the nuclear charge change as you move down a group in the periodic table?
The nuclear charge decreases as you move down a group in the periodic table.
