Question

1. use your knowledge of atomic calculations to complete the chart. element li p cl ni k ag h si w ne atomic number 3 15 atomic mass 7 31 35 39 1 protons 3 15 neutrons 4 electrons 3 5

Explanation:

Step1: Recall atomic - related concepts

The atomic number is equal to the number of protons. In a neutral atom, the number of electrons is equal to the number of protons. The mass number is the sum of the number of protons and neutrons.

Step2: Analyze each element

For Ne (Neon): Atomic number = 10, Protons = 10, Electrons = 10 (neutral atom), Mass number = 20 (from periodic - table knowledge, common isotope), Neutrons=Mass number - Protons = 20 - 10 = 10.
For W (Tungsten): Atomic number = 74, Protons = 74, Electrons = 74 (neutral atom), Mass number = 184 (common isotope), Neutrons = 184 - 74 = 110.
For Si (Silicon): Atomic number = 14, Protons = 14, Electrons = 14 (neutral atom), Mass number = 28 (common isotope), Neutrons = 28 - 14 = 14.
For H (Hydrogen): Atomic number = 1, Protons = 1, Electrons = 1 (neutral atom), Mass number = 1 (common isotope), Neutrons = 1 - 1 = 0.
For Ag (Silver): Atomic number = 47, Protons = 47, Electrons = 47 (neutral atom), Mass number = 108 (average value), Neutrons = 108 - 47 = 61.
For K (Potassium): Atomic number = 19, Protons = 19, Electrons = 19 (neutral atom), Mass number = 39 (common isotope), Neutrons = 39 - 19 = 20.
For Ni (Nickel): Atomic number = 28, Protons = 28, Electrons = 28 (neutral atom), Mass number = 59 (average value), Neutrons = 59 - 28 = 31.
For Cl (Chlorine): Atomic number = 17, Protons = 17, Electrons = 17 (neutral atom), Mass number = 35 (common isotope), Neutrons = 35 - 17 = 18.
For P (Phosphorus): Atomic number = 15, Protons = 15, Electrons = 15 (neutral atom), Mass number = 31 (common isotope), Neutrons = 31 - 15 = 16.
For Li (Lithium): Atomic number = 3, Protons = 3, Electrons = 3 (neutral atom), Mass number = 7 (common isotope), Neutrons = 7 - 3 = 4.

Answer:

Element	Atomic Number	Atomic Mass	Protons	Neutrons	Electrons
W	74	184	74	110	74
Si	14	28	14	14	14
H	1	1	1	0	1
Ag	47	108	47	61	47
K	19	39	19	20	19
Ni	28	59	28	31	28
Cl	17	35	17	18	17
P	15	31	15	16	15
Li	3	7	3	4	3