Br^-; an atom with extra electrons

(a)  

an atom with a positive or negative charge

(a)  

JUST enter the symbol: the MOST electronegative element on the periodic table

(a)  

JUST enter the symbol: The element on the periodic table with the HIGHEST ionization energy

(a)  

JUST enter the symbol: The stable element with the largest atomic radius on the periodic

(a)  

electrons in the outer energy level of atoms

(a)  

quantum of light; given off when an electron moves from the excited state back to the ground state

(a)  

Enter just the symbol - element listed with the largest atomic radius:

Sc. Cr. Ni. Br

(a)  

Enter just the symbol - element listed with the a filled outer energy level:

Na. Al P Ar

(a)  

Enter just the symbol - element listed with the highest electronegativity:

Li Na. K Rb

(a)  

ENTER the NUMBER: number of valence electrons in the electron configuration below

1s²2s²2p¹

(a)  

Write the correct element symbol in: What element is represented below?

[Ar] 3d¹⁰ 4s² 4p²

(a)  

JUST enter the symbol: Which element below is a Noble Gas?

Sr. Ru. Ag. Xe

(a)  

JUST enter the symbol: Which element below is in the Actinide Series?

Dy W Pu He

(a)  

JUST enter the symbol: Which element below is a Transition Metal?

Li. Mg. Pd. Br.

(a)  

JUST enter the symbol: Which element below is an Alkali Metal?

Fr. Os. Be. Si.

(a)  

JUST enter the symbol: Which element below is a Halogen?

Re. Rn. Ba. At

(a)  

JUST enter the symbol: Which element below is in group 2A?

K. Cl. Kr. Ba

(a)  

Enter the number: how many valence electrons do the elements below have?

Bi P As. Sb

(a)