Chemistry

What is the atomic number of carbon?
a) 6
b) 12
c) 14
Which element is the most abundant in Earth's crust?
a) Silicon
b) Oxygen
c) Iron
3. What is the chemical symbol for gold?
a) Ag
b) Ge
c) Au
Which of the following is a noble gas?
a) Hydrogen
b) Neon
c) Sulfur
What is the pH of a neutral solution?
a) 0
b) 7
c) 14
Which subatomic particle carries a negative charge?
a) Electrons
b) Neutron
c) Proton
What is the chemical formula for water?
a) C02
b) H2O
c) CH4
Which type of chemical bond involves the sharing of electrons?
a) Metallic bond
b) Hydrogen bond
c) Covalent bond
What is the atomic number of nitrogen
a) 9
b) 5
c) 7
what is the atomic number of Hydrogen
a) 1
b) 3
c) 6