If an atom contains more protons compared to electrons, the atom is said to be ______________________.

• Neutral charged

• Positively charged

• Negatively charged

• I don't understand

Number of proton called ______________

• Atomic Mass

• I am still confuse

• Mass Number

• Atomic Number

In one atom contains:

• Electron

• Nucleus

• Neutron

• Chemical symbol

• Proton

No of neutrons + no of protons equal to ________________

• Atomic Number

• Nucleus

• Atomic Mass

• I cannot remember

Bromine Ion contain _________________________________

• 17 protons and 18 electrons

• 17 protons and 17 electrons

• 35 protons and 36 electrons

• 35 protons and 35 electrons

• I am not sure

90% of the mass of an organism in this world composed of elements which are:

• Carbon, Nitrogen, Oxygen and Hydrogen

• Nitrogen, Oxygen, Helium, Hydrogen

• Oxygen, Carbon, Hydrogen

• Carbon and Hydrogen

Atom having same atomic number but different mass number

• Isononano

• Isopropanol

• Isobar

• Isotopes

Cation is define as;

• Ion with negative charge formed by gaining of electrons

• Ion with negative charge formed by losing of electrons

• Ion with positive charge formed by losing of electrons

• Ion with positive charge formed by gaining of electrons

Which below are ionic compound:

• NaCl

• MgBr

• MgF₂

• CaBr₂

Which below are polyatomic anion:

• N³⁺

• OH^-

• Cl^-

• NO₃^-1