Question

information you need to know for your 1st semester science exam

1. identify each part of the element box- yes, label a, b, c, d

which ones have the same numbers? \ape\
atomic number, proton, electron
a –
b –
c –
d –

1. what part of the element box is used to identify the element?

which subatomic particle makes each atom unique and different from the other elements and is how elements are arranged on the periodic table?

1. use a periodic table to determine whether the statement is incorrect or correct

a. copper has more protons than arsenic
b. hydrogen has more protons than helium
c. sulfur has more protons than magnesium
d. lithium has more protons than carbon

1. ________ are made from joining of two or more atoms, which can be broken apart during a decomposition reaction). ______ are pure substances with specific properties, while ________ are the smallest unit of an element that still retains the element’s properties.

circle which of the following is simple and cannot be broken down any further?
element or compound elements

1. identify the following as either element or compound.... write the word in the blank

he- ________ o₂- ______ caco₃- ________
c- ________ h₂o ______ br - ________
ni- ________ nh₃ - ______ nacl - ________

1. when observing the periodic table, where are the transition metals generally found? from group ________# to group ________#

where are metals found?
where are non - metals found?
what is hydrogen considered?
circle the elements below that are transition metals:
na cu ar zn be cl fe

Explanation:

The problem involves concepts related to elements, the periodic table, subatomic particles, and chemical substances, which fall under the subfield of Chemistry in Natural Science. For question 1, the element box (periodic table element tile) has parts: A is atomic number (28 for Ni), B is symbol (Ni), C is name (Nickel), D is atomic mass (58.71). For question 2, the symbol (B) identifies the element; protons (atomic number) make atoms unique and arrange elements. For question 3: a. Copper (atomic no. 29) vs Arsenic (33) → incorrect. b. Hydrogen (1) vs Helium (2) → incorrect. c. Sulfur (16) vs Magnesium (12) → correct. d. Lithium (3) vs Carbon (6) → incorrect. For question 4: Molecules are joined atoms (decomposed in reactions), Compounds are pure substances with specific properties, Atoms are smallest element units. Elements are simple (can’t break down). For question 5: He (element), O₂ (element), CaCO₃ (compound), C (element), H₂O (compound), Br (element), Ni (element), NH₃ (compound), NaCl (compound). For question 6: Transition metals: group 3 to 12. Metals: left and middle (except H). Non - metals: right (and H). Hydrogen: non - metal (or unique). Transition metals: Cu, Zn, Fe.

Answer:

Question 1

A - Atomic Number (28)
B - Element Symbol (Ni)
C - Element Name (Nickel)
D - Atomic Mass (58.71)

Question 2

Part of element box to identify element: Element Symbol (B). Subatomic particle: Protons (atomic number).

Question 3

a. Incorrect
b. Incorrect
c. Correct
d. Incorrect

Question 4

Molecules are made from joining of two or more atoms; Compounds are pure substances with specific properties; Atoms are the smallest unit of an element. Circle: Element.

Question 5

He - Element
O₂ - Element
CaCO₃ - Compound
C - Element
H₂O - Compound
Br - Element
Ni - Element
NH₃ - Compound
NaCl - Compound

Question 6

Transition metals: from group 3 # to group 12 #.
Metals: Found on the left and in the middle of the periodic table (except Hydrogen).
Non - metals: Found on the right side of the periodic table (and Hydrogen).
Hydrogen: Considered a non - metal (or a unique element).
Transition metals (circle): Cu, Zn, Fe