Elements
The number of protons magnesium has?
What is 12.
The electron configuration of sodium.
What is 1s22s22p63s1?
Atomic size ______ down a group.
What is increases?
What a positive ion is called
What is a cation.
The group that copper is in.
What is 11.
The number of valence electrons fluorine has?
What is 7?
The definition of electronegativity.
What is the ability to attract electrons?
The reason an anion has a negative charge.
What is because it gains (negatively charged) electrons?
I am an element in group 17 and period 4. I have this many protons.
What are 35 protons (bromine.
The number of valence electrons an element in period 4, group 2 has.
What is 2?
The name of least reactive group in the periodic table.
What are the noble gases?
The charge of a fluorine ion with a full valence shell.
What is -1.
The name of the elements in group 17.
What are Halogens.
The element that has the electron configuration 1s22s22p63s23p2
What is Silicon?
Electronegativity _______ across a period and ________ down a group.
What increases across a period and decreases down a group?
The charge of a calcium ion with a full valence shell.
What is +2?
The attraction between protons and electrons.
What is the attraction between oppositely charged particles.
The reason that elements in the same group have similar chemical properties.
What is because they have the same number of valence electrons?
The reason that potassium is more reactive than sodium.
What is: while they have the same number of valence electrons, it has a greater atomic radius. The force of attraction between the protons in the nucleus and the valence electrons is therefore lower because they are further away.
The electron configuration for the Mg2+ ion.
What is 1s22s22p6?
The number of Valence Electrons the element BROMINE (Br) has, and its charge in its most stable state.
What is 7 and -1.