Periodic Table Revisit before compounds

Question 1

How many valence electrons does carbon have?

Accepted Answer

four

Question 2

Which three atoms/ions are isoelectronic?

Accepted Answer

F-1, O-2, Mg+2

Question 3

Which noble gas will the potassium ion be isoelectronic with?

Accepted Answer

argon

Question 4

As a group, metals have lower________ and larger ________ than nonmetals in the same period.

Accepted Answer

ionization energy, atomic radius

Question 5

How many valence electrons does the transition metal cobalt (27) have?

Accepted Answer

two

Question 6

How many valence electrons does the inner transition metal europium (63) have?

Accepted Answer

two

Question 7

Which will have a smaller atomic radius, a sodium ion or a neutral sodium atom?

Accepted Answer

sodium ion

Question 8

How many valence electrons does the sulfur atom gain in order to get a full valence shell?

Accepted Answer

two

Question 9

Which element below is most likely to form an ion with a -2 charge?

Accepted Answer

oxygen

Question 10

Which group of elements on the periodic table have a valence electron configuration of s2p1?

Accepted Answer

group 3A

Question 11

Metals will always ______ electrons when they form ions.

Accepted Answer

lose

Question 12

What is the most common charge on the ion that bromine(35) will form when it forms ions?

Accepted Answer

-1

Questions 12