Question

1. vertical columns on the periodic table are called
2. horizontal rows on the periodic table are called
3. the number of protons in an atom is that elements number.
4. the number of protons and neutrons in an atom is that atoms number.
5. the ability of a material to be drawn into a thin wire is called
6. the ability of a material to be pounded into thin sheets is called
7. the elements in groups 3 through 12 are called the
8. the elements in group 1 are called the
9. the elements in group 2 are called the
10. the elements in group 18 are called the
11. the elements in group 17 are called the
12. the elements in group are the most reactive metals.
13. the elements in group are the most reactive nonmetals.
14. the elements in group are very unreactive.
15. the elements in group react very violently with water.
16. complete the following atomic chart.

element	# of protons	# of neutrons	# of electrons	atomic number	mass number
ca
ni
	13	14
				16	32
				9	19
	32				73
li
mg

Explanation:

1. In the periodic table, vertical columns are called groups or families.
2. Horizontal rows are periods.
3. The number of protons in an atom is its atomic number.
4. The sum of protons and neutrons gives the mass number.
5. Ductility is the ability to be drawn into a thin wire.
6. Malleability is the ability to be pounded into thin sheets.
7. Elements in groups 3 - 12 are transition metals.
8. Group 1 elements are alkali metals.
9. Group 2 elements are alkaline - earth metals.
10. Group 18 elements are noble gases.
11. Group 17 elements are halogens.
12. Group 1 elements are the most reactive metals.
13. Group 17 elements are the most reactive non - metals.
14. Group 18 elements are very unreactive.
15. Group 1 elements react violently with water.
16. For Ca: Atomic number of Ca is 20, so # of protons = 20, # of electrons = 20 (in neutral atom), mass number is around 40, # of neutrons = mass number - atomic number = 40 - 20 = 20. For Ni: Atomic number of Ni is 28, so # of protons = 28, # of electrons = 28, mass number is around 59, # of neutrons = 59 - 28 = 31. For the element with 13 protons, it is Al, # of electrons = 13, atomic number = 13, mass number = 13 + 14 = 27. For the element with atomic number 16, it is S, # of protons = 16, # of electrons = 16, # of neutrons = 32 - 16 = 16. For the element with atomic number 9, it is F, # of protons = 9, # of electrons = 9, # of neutrons = 19 - 9 = 10. For the element with 32 protons, atomic number = 32 (Ge), # of electrons = 32, # of neutrons = 73 - 32 = 41. For Li: Atomic number of Li is 3, so # of protons = 3, # of electrons = 3, mass number is around 7, # of neutrons = 7 - 3 = 4. For Mg: Atomic number of Mg is 12, so # of protons = 12, # of electrons = 12, mass number is around 24, # of neutrons = 24 - 12 = 12.

Answer:

1. Groups
2. Periods
3. Atomic
4. Mass
5. Ductility
6. Malleability
7. Transition metals
8. Alkali metals
9. Alkaline - earth metals
10. Noble gases
11. Halogens
12. 1
13. 17
14. 18
15. 1

18.

Element	# OF PROTONS	# OF NEUTRONS	# OF ELECTRONS	ATOMIC NUMBER	MASS NUMBER
Ni	28	31	28	28	59
Al	13	14	13	13	27
S	16	16	16	16	32
F	9	10	9	9	19
Ge	32	41	32	32	73
Li	3	4	3	3	7
Mg	12	12	12	12	24