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Periodic Table of Elements
Explore questions in the Periodic Table of Elements category that you can ask Spark.E!
- a) What are three ion charges that an ion of manganese can have?b) Which ion charge us the most common?
- What are the vertical columns in the periodic table called?
- Some elements in the periodic table have more than one ion charge shown. What does that tell you about these elements?
- The elements in the periodic table may be classified as one of three types. What are the names of these types?
- The common ion charge of some elements in the periodic table is zero. What does that tell you about the element?
- What particles has to be removed from an atom so that the atom becomes a positive ion?
- Which has more mass, an atom of gold or an atom of lead?
- a) What kind of ions do elements on the left side of the periodic table form?b) What kind of ions do elements on the right side of the periodic table form?
- In the periodic table find the atomic mass for each of the following elements. a) lithiumb) siliconc) irond) coppere) mercury
- The unit for atomic mass is AMU what does each letter stand for?
- Use the periodic table to find out the atomic number for each of the following elements. a) Heliumb) Oxygenc) Irond) Golde) Uraniumf) Mendelevium
- Which has more proton, an atom of sodium or an atom of potassium.
- In the periodic table used today, are the elements listed in order of atomic number or atomic mass?
- How many valence electrons will make an atom stable?
- Maximum number of electrons in a d sublevel.
- The numbers on top of the columns tell you what?
- What divides the metals from the nonmetals?
- Who made the second atomic model that looked like plum pudding?
- Who made the first atomic model that looked like a solid sphere?
- Who made a model of the atom with energy levels?