Periodic Table (H)

An atom of which element would likely have a positive electron affinity?

Which of the following is not one of the diatomic elements?

An increase in shielding will cause an atom's radius to become?

Element X is an extremely reactive nonmetal. It is found on the 3rd period and has 7 ve-. X is?

Which of the following is a metalloid on the 4th period?

As elements are put in order of increasing atomic #, there is a regular, repeating pattern.

The energy required to remove an electron from a neutral atom is an element's?

Which of the following is a metalloid?

Put the following atoms in order of increased shielding?

If both spheres represent sulfur, which sphere represents the sulfur ion?

Element Z has a 1st ionization energy of 545 kJ/mol. It has a 2nd IE of 2995 kJ/mol. Z is likely which?

Which of the following is a transition metal on the 4th period?

What charge would an alkaline earth metal have?

Metals tend to ____ electrons and take on a ___ charge.

Which would be the most reactive nonmetal?

Which are in proper order of increasing electronegativety?

Element X is shiny in appearance, and a good conductor of both heat and electricity. Element X...

Which element has the lowest ability to attract an electron?

T/F Transition metals do not have valence electrons

Which element would you expect to have the highest ionization energy?

The noble gasses have...

Which group of elements would have a charge of -2 if in an ion state?

Which element would have the lowest ionization energy?

X has an e- affinity of -324kJ/mol. Z has an e- affinity of -53kJ/mol. Which is likely an alkali and which a halogen?

Which would have a larger atomic radius, a sodium or calcium atom?

Which of the following is an inner transition metal?

Which of the following would be proper order for decreasing radius?

Helium is classified as a noble gas because?

The group with 7 valence electrons?

Phosphorous has how many valence electrons?