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They have the same number of protons
What else can I help you with?
Why are elements put in rows?
all elements in one period have the same number of energy levels
Are the atoms the same or different in hydrogen?
All hydrogen atoms are the same but they are different from the atoms of other elements.
All compounds are formed of what?
all compounds are formed of one or more elements..
What do all elements in a group have on a periodic table?
All elements in a group have same chemical properties. They have same number of valence electrons.
What do all elements have the same of?
protons
Which elements occupy the same group in the periodic table?
Elements that have similar chemical properties occupy the same group on the Periodic Table.
What is about all elements that can be found in the same group?
All elements in the groups (excluding transition metals) have the same number of electrons as the group number.
State two characteristics shared by elements of the same group in the periodic table?
They are all composed of the same elementary particles, i.e. all of them have protons and electrons (and all but one have neutrons). Also: - all of them have mass - all of them exist in space and time - all of them interact with other elements by means of electromagnetic forces and gravitational forces - all of them exist in more than one isotopic variety.
Where are elements with the same number of valence electrons?
Elements with the same number of valence electrons are found in the same group or column of the periodic table. This is because elements in the same group have the same number of valence electrons, which determines their chemical properties. For example, all elements in group 1 have 1 valence electron.
How many elements contain the same number of outer electrons as sodium?
Elements in the same group as sodium (Group 1) all contain the same number of outer electrons, which is one. Therefore, there are six elements in the same group as sodium: lithium, potassium, rubidium, cesium, francium, and hydrogen.
What is Dalton's four principles?
All elements are composed of atoms.All atoms of the same elementhave the same mass, and atomsof different elements have different masses.Compounds contain atoms of more than one element.In a particular compound, atoms of different elements aalways combine in the same way.
Do all elements in a group have the same oxidation numbers?
There is at least one oxidation number shared by all the elements in a periodic table column, but some of the elements may have more than one oxidation number and some of these additional oxidation numbers may not be possible for all the elements in a column.
