how many non metal are present in atomic no 1 to 36
Answers
Explanation:
List of Nonmetals 11
This entry was posted on September 3, 2014 by Todd Helmenstine (updated on August 24, 2018)
Periodic Table Nonmetals - 2017
The highlighted elements are the nonmetal elements.
The nonmetal elements occupy theThe nonmetal elements occupy the upper right-hand corner of the periodic table. These elements have similar chemical properties that differ from the elements considered metals.
The nonmetal element group is a subset of these elements. The nonmetal element group consists of hydrogen, carbon, nitrogen, oxygen, phosphorus, sulfur and selenium.
Hydrogen acts as a nonmetal at normal temperatures and pressure and is generally accepted to be part of the nonmetal group.
Properties of nonmetals include:
dull, not shiny
poor conductor of heat
poor conductor of electricity
high ionization energies)H Hydrogen
2 He Helium
6 C Carbon
7 N Nitrogen
8 O Oxygen
9 F Fluorine
10 Ne Neon
15 P Phosphorus
16 S Sulfur
17 Cl Chlorine
18 Ar Argon
34 Se Selenium
35 Br Bromine
36 Kr Krypton
high electronegativity
not malleable or ductile, usually brittle
lower density (when compared to metals)
lower melting point and boiling points (when compared to metals)
gains electrons in reactions
This is a list of the nonmetal elements in order of increasing atomic number.
Answer:
12
Explanation:
- BORON
- CARBON
- NITROGEN
- OXYGEN
- FLUORINE
- SILICON
- PHOSPHORUS
- SULPHUR
- CHLORINE
- ARSENIC
- SELENIUM
- BROMINE