1. Magnesium
Which element would have a strong reaction in water? Rubidium, Calcium, Ruthenium, Polonium

2. Besides the noble gas, which nonmetal is least reactive in period 2?
Valence Electrons
Besides the noble gas, which nonmetal is least reactive in period 2?

3. Silicon
Draw an electron dot structure for an element in the alkaline earth metal group. Use x as a symbol.

4. Which element has the largest ionization energy? Li, Si, S, Al18
Which element has the largest ionization energy? Li, Si, S, Al

5. Who arranged the periodic table according to increasing atomic mass?X
Who arranged the periodic table according to increasing atomic mass?

6. What is the group # of the non-reactive elements?
Mendeleev
What is the group # of the non-reactive elements?

7. How many valence electrons do most elements want to become stable?
Sulfur
How many valence electrons do most elements want to become stable?

8. What is the smallest possible atomic number that Element Y could have?Sc
Element I1 I2 I3 I4 I5 X
738
1450
7730 Y
786
1580
3230
4360
16,100 Z
578
1820
2750
11,600
What is the smallest possible atomic number that Element Y could have?

9. 1
An element has similar chemical properties to Barium and Radium. Which element could this be? Na, Ca, F, Ne

10. 5
Who was responsible for arranging the periodic table as we know it today?

11. Which of the following has the lowest ionization energy? B, Si, P, O
Arsenic
Which of the following has the lowest ionization energy? B, Si, P, O

12. Which metal is least reactive in the alkaline earth metals?8
Which metal is least reactive in the alkaline earth metals?

13. Carbon
Draw an electron dot structure for an element with an ending electron configuration of “p2”. Use x as a symbol.

14. Polonium 1 2 3 4
The 4 circles represent either As3-, Zn2+, Br-1 and Se2-. Which one most likely represents the zinc ion?

15. Calcium
Which is the largest? Find the symbol!!!! [Ne]3s23p4 [Ar]4s23d104p1 [Ar]4s23d1 1s22s22p63s23p6

16. What are used to make electron dot structures?
Alkaline Earth Metals
What are used to make electron dot structures?

17. In which group (name) does Element X most likely belong?
Rubidium
Element I1 I2 I3 I4 I5 X
738
1450
7730 Y
786
1580
3230
4360
16,100 Z
578
1820
2750
11,600
In which group (name) does Element X most likely belong?

18. Oxygen
Scientists discovered a new element with an atomic number of 120 and a mass number of Which element would this be most similar to? Na, Mg, F, Ne

19. Beryllium
Which element would most likely form an ion with a -2 charge? Rubidium, Calcium, Ruthenium, Polonium

20. Moseley 1 2 3 4
The 4 circles represent different ions or atoms. If #3 represents Br, which could represent As-3?

21. How many valence electrons in P?6
How many valence electrons in P?

22. Which element is found in period 4, group 15?

23. Which of the following is the largest atom? B, Si, P, OX
Which of the following is the largest atom? B, Si, P, O

24. Which of the following has the highest electronegativity? B, Si, P, O
Boron
Which of the following has the highest electronegativity? B, Si, P, O