Notes

Elements Exam 11/19 58%
Angie Martinez


1/1 1. the properties of water are

different from the properties of both oxygen and hydrogen
the same as the properties of oxygen , but different from the properties of hydrogen
the same as the properties of hydrogen, but different from the properties of oxygen
the same as the properties of oxygen and hydrogen

1/1 2. A cooking pot must conduct heat easily in order to warm up food. Which kind of element is best for making a cooking pot?
non metals

metals
semimetal
inert gas

1/1 3. In what side of the periodic table would you expect to find nonmetals?
on the left side
on the center

on the right side
on the bottom

1/1 4. Which particles in atoms have a negative electric charge?
neutrons
protons
nuclei

electrons

0/1 5. Silicon is a semimetal. What properties would you expect silicon to have?

most of the properties of non metals
properties not found in metals or non metals

some properties of both metals and non metals
most of the properties of metals

0/1 6. The most useful property of semimetals is their

tendency to be unreactive.
ability to be pulled out into long wires.

varying ability to conduct electricitic current.
softness and malleability.

0/1 7. Which group of elements shares characteristics with both metals and nonmetals?

salts

semimetals
lanthanides
halogens

0/1 8. Fluorine, chlorine, bromine, and iodine are part of...
alkali metals.

semimetals.
inert gases.

non metals

1/1 9. All elements are made up of
orbitals

atoms
compounds
ions

1/1 10. Most metals are NOT

liquid at room temperature.
malleable.
ductile.
good conductors of heat and electricity.

1/1 11. What information in the periodic table indicates the number of protons in an atom?

the element’s atomic number
the element’s atomic mass
the element’s chemical symbol
the position of the element in its column

1/1 12. Which group contains the most elements?

metals
semimetals
nonmetals
transition elements

1/1 13. Two atoms of different elements must have a different number of
neutrons
electrons
nucleus

protons

0/1 14. A shiny substance is easily molded into a handrail. It grows really hot when the sun shines on it. Which of the following is most likely the category of the element?

metal

metalloid
non metal

0/1 15. Which of the following is an example of a compound?

water
carbon
oxygen

helium

1/1 16. In general, which of the following statements about metals is true?
Metals do not react with oxygen.
Metals are highly reactive substances.

Metals show a wide range of chemical properties.
Metals need to be stored in sealed containers for safety.

0/1 17. Which statement about compounds is true?
compounds are made of only one kind of atom

compounds are pure substances made of atoms of two or more elements

compounds form when protons are shared
compounds form when neutrons are shared

1/1 18. In an atom, the number of protons equals the number of
neutrons.
nuclei.

electrons.
isotopes.

0/1 19. what is contained in an atom's nucleus?

electrons and neutrons
electrons and protons

protons and neutrons
neutrons and ions