Skip to content
Back to quiz
6. what the horizontal lines in the periodic table called?
- periods
- relative atomic number
- groups
- relative atomic mass
7. where are the protons, neutrons and electrons in an atom?
- central nucleus = protons & neutrons, shells = electrons
- central nucleus = electrons & neutrons, shells = protons
- central nucleus = protons , shells = electrons & neutrons
- central nucleus = electrons, shells = protons & neutrons
8. atoms of the same element with a different number of neutrons are called what?
- isotopes
- relatives
- elements
- atom equivalence's
9. who first made the periodic table?
- Mendeleev
- Antimony
- Newlands
- Newton
10. Atoms of given element have the same number of what in their nuclei?
- electrons
- protons and neutrons
- protons
- neutrons
11. what is the atomic number in an element?
- the number of electrons in the nucleus
- the number of protons in the nucleus
- the number of neutrons in the nucleus
- the number of protons and neutrons in the nucleus
12. what is the mass number in an element?
- the total number of electrons and neutrons in the nucleus
- the total number of protons and neutrons in the nucleus
- the total number of protons and electrons in the nucleus
- the total number of neutrons and electrons in the nucleus
13. atoms have the same number of what?
- protons and electrons
- protons and neutrons
- electrons and neutrons
- shells and electrons
14. what is the relative mass and relative charge of a electron?
- mass=1/1840, charge=-1
- mass=1, charge=0
- mass=1, charge=+1
- mass=10, charge=+10
15. what is the relative mass and relative charge of a proton?
- mass=1/1840, charge=-1
- mass=1, charge=0
- mass=1, charge=+1
- mass=10, charge=+10
16. where is the mass number written when next to an element symbol?
- top left
- bottom right
- top right
- bottom left