C- row 2, colun II. Write "T" if the statement is true, and “F” if it is false,
Change the underlined word(s) to make the statement
true.
1. In the periodic table as suggested by Mendeleev, elements were
arranged in the order of increasing atomic number.
2. Sodium (Z=11) is a member of a group called alkaline earth
metals.
3. Elements to the extreme right of the periodic table are metals.
4. Metalloids have properties of metals and non-metals.

1). In the periodic table as suggested by Mendeleev, elements were

the periodic table as suggested by Mendeleev, elements werearranged in the order of increasing atomic number.

--> T

2). Sodium (Z=11) is a member of a group called alkaline earth

Sodium (Z=11) is a member of a group called alkaline earthmetals.

--> T

3). Elements to the extreme right of the periodic table are metals.

--> F

They are non-metals .

4). Metalloids have properties of metals and non-metals.

--> T

a: 45.9 meters

b: 4.29 seconds

step-by-step explanation:

a: h(t)=1/2(-9.8)(3)^2+0(3)+90

h(t)=-4.9(3)^2+90

h(t)=-44.1+90

h(t)=45.9 meters

b: 0=1/2(-9.8)(t^2)+0t+90

0=-4.9t^2+90

-90=-4.9t^2

18.37=t^2

t=4.29 seconds

in the second question, the numbers aren't exact, but they're a close approximation.